JP6516385B2 - Signal transmission method, user apparatus, and base station - Google Patents

Description

  The present invention relates to the field of communications, and more particularly, to a signal transmission method, user equipment and base station.

  In an actual network, Device-to-Device (abbreviated as "D2D") communication refers to direct communication between devices. In Device-to-Device Proximity Service (abbreviated as "D2D ProSe"), when sending a signal, the signal is usually sent by using the same power in different physical resource blocks. Ru. For example, when discovery signals are transmitted on D2D (between devices), these discovery signals are transmitted by using maximum power in different physical resource blocks, and uplink signals transmitted from the same user equipment are also Usually transmitted by using the same power.

  Thus, in the prior art, the transmit power of the signal can not be adjusted accordingly, so transmitting one signal will interfere with the other signal, affecting the performance of the network communication. It will

  Various embodiments of the present invention provide a signal transmission method, user equipment, and base station that can transmit signals by adjusting power according to the situation to improve network performance.

  According to a first aspect, there is provided a signal transmission method, said method comprising: one or more first physical resource blocks (PRB, Physical Resource) utilized for transmitting a first signal by a first user equipment Block), and the first user device transmitting the first signal from the first user device in the one or more first PRBs based on the position of the one or more first PRBs. Determining the transmission power to be used for the transmission and transmitting the first signal from the first user equipment in the one or more first PRBs by using the transmission power.

  According to a first aspect, in the first embodiment of the first aspect, the transmission power is for transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs. The maximum transmission power used for transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs, Determined by one user device based on the transmit power candidate used to transmit the first signal from the first user device in each of the one or more first PRBs, and from the first user device The transmission power candidate used to transmit the first signal in each PRB of the one or more first PRBs is the position of the one or more first PRBs and the base station by the first user apparatus. It is determined based on the power information supplied from

  According to a first applicable embodiment, in the second embodiment, the power information includes power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. The transmission power candidate used for transmitting the first signal from the first user device by each PRB of the one or more first PRBs is the first user device by the first user device A first power used to transmit the first signal in each PRB of the one or more first PRBs, and each PRB of the one or more first PRBs from the first user device The first power is determined by the first user equipment to determine the positions of the one or more first PRBs and the one or more first PRBs. It is determined based on the power setting information, and the second power is the one by the first user apparatus. The position of the PRB above, and is determined based on the power control parameter information of said one or more first PRB.

  According to a first applicable embodiment, in the third embodiment, the power information includes power control parameter information of the first user equipment and power setting information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs may have a first power and a second power by the first user equipment. The first power is determined by the first user device based on the position of the one or more first PRBs and the power setting information of the one or more first PRBs. The second power is determined by the first user device based on the positions of the one or more first PRBs and the power control parameter information of the first user device.

  According to a first applicable embodiment, in the fourth embodiment, the power information includes power setting information of the first user equipment and power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs may have a first power and a second power by the first user equipment. And the first power is determined by the first user equipment based on the position of the one or more first PRBs and the power setting information of the first user equipment. Power is determined by the first user device based on the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs.

  According to any one of the second to fourth applicable embodiments, in the fifth embodiment, each of the PRBs of the one or more first PRBs receives the first signal from the first user equipment. The transmission power candidate used to transmit at is the smaller of the first power and the second power.

  According to any one of the second to fourth applicable embodiments, in the sixth embodiment, each of the PRBs of the one or more first PRBs receives the first signal from the first user equipment. The transmission power candidate used to transmit at is the minimum power among the maximum transmission power supported by the first user equipment, the first power, and the second power.

  According to a first applicable embodiment, in the seventh embodiment, the power information includes power setting information of the one or more first PRBs, and the first signal from the first user equipment. The transmission power candidate used to transmit in each PRB of the one or more first PRBs is a first power, and the first power is transmitted by the first user device to the one or more first PRBs. To be determined based on the position and the power setting information of the one or more first PRBs, or to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The transmission power candidate used is the smaller of the maximum transmission power supported by the first user equipment and the first power, and the first power is transmitted by the first user equipment. The position of the one or more first PRBs and the power setting information of the one or more first PRBs It is determined Zui.

  According to a first applicable embodiment, in the eighth embodiment, the power information includes power control parameter information of the one or more first PRBs, and the first signal from the first user device The transmission power candidate used for transmitting each PRB of the one or more first PRBs is a second power, and the second power is transmitted by the first user apparatus to the one or more first PRBs. And the power control parameter information of the one or more first PRBs, or transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs. The transmission power candidate used for the transmission is the smaller of the maximum transmission power supported by the first user equipment and the second power, and the second power is the first user equipment According to the position of the one or more first PRBs and the one or more first PRBs It is determined based on the power control parameter information.

According to any one of the second, fourth, fifth, sixth and eighth embodiments, in the ninth embodiment the power control parameter information is P _o (j), f (J) and at least one of α (j), where j is the position number of the PRB, and P _o (j) is set by the system to receive the discovery signal at the (j) PRB Target received power threshold, f (j) is a power control parameter, and is used to control the power increase value used to transmit a signal from the user equipment in the (j) PRB , And α (j) 0, [0, 1] are path loss correction coefficients set by the system to transmit the signal in the (j) PRB.

According to a ninth applicable embodiment, in the tenth applicable embodiment, the second power is transmitted by the first user device according to the following formula:
It is derived based on P (j) = (P _o (j) + α (j) · PL + f (j)) [dBm],
Where P (j) is the maximum transmit power used to transmit a signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment It is.

  According to any one of the second, third, fifth, sixth and seventh embodiments, in the eleventh applicable embodiment, the power setting information comprises one or more of the one or more embodiments. Power corresponding to each PRB of the first PRB, wherein the first power corresponds to the position of the one or more first PRBs and each PRB of the one or more first PRBs by the first user device It is determined based on the power.

  According to any one of the second, third, fifth, sixth and seventh embodiments, in the twelfth applicable embodiment, the power configuration information comprises: reference transmission power; The offset value corresponding to each PRB of the one or more first PRBs, and the first power may be the position of the one or more first PRBs, the reference transmission power, and the reference power by the first user equipment. It is determined based on the offset value corresponding to each PRB of one or more first PRBs.

  According to any one of the second, third, fifth, sixth and seventh embodiments, in the thirteenth applicable embodiment, the power setting information comprises one or more of the one or more embodiments. At least one offset value corresponding to each PRB of the first PRB, and the first power is supported by the first user device, the position of the one or more first PRBs, the first user device The maximum transmission power is determined based on the offset value corresponding to each PRB of the one or more first PRBs.

  According to a first aspect, in the fourteenth applicable embodiment, the transmission power is equal to or less than the maximum transmission power used to transmit the first signal in each PRB of the one or more first PRBs. Power, and the maximum transmission power used to transmit the first signal from the first user equipment in each of the one or more first PRBs is determined by the first user equipment. The first signal from the first user device is determined based on transmit power candidates used to transmit the first signal from each user device in each of the one or more first PRBs. The transmission power candidate used to transmit in each PRB of the first PRB above is determined by the first user apparatus based on pre-setting information, and the pre-setting information includes the one or more first 1 represents the transmission power candidate corresponding to each PRB of 1 PRB.

  According to a first aspect, in the fifteenth applicable embodiment, the transmission power is power information supplied from the base station and the position of the one or more first PRBs by the first user equipment. The power information includes the transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs.

  According to first to fourteenth applicable embodiments, in the sixteenth applicable embodiment, the one or more first PRBs are one PRB, and the first user equipment is the first user equipment. The maximum transmission power used to transmit a signal on each PRB of the one or more first PRBs transmits the first signal on each PRB of the one or more first PRBs from the first user device The transmission power candidate used for

  According to first to fourteenth applicable embodiments, in the seventeenth applicable embodiment, the one or more first PRBs are two or more PRBs, and the first user apparatus is connected to the first user apparatus. The maximum transmission power used to transmit one signal in each PRB of the one or more first PRBs is determined by the first user equipment from the first signal from the first user equipment. It is determined based on at least one transmission power candidate used to transmit in the first PRB.

  According to a seventeenth applicable embodiment, in the eighteenth applicable embodiment, used to transmit the first signal from the first user device in each PRB of the one or more first PRBs. The maximum transmission power is a minimum power among the at least one transmission power candidate used to transmit the first signal from the first user apparatus in the one or more first PRBs.

  According to the first to eighteenth applicable embodiments, in the nineteenth applicable embodiment, the first signal is a device-to-device (D2D) discovery signal, a D2D direct communication signal, or a user equipment to base station. It is a signal of any one of a physical uplink control channel PUCCH signal to a station and a physical uplink shared channel PUSCH signal from a user apparatus to a base station.

  According to a second aspect, there is provided a method of signal transmission, said method comprising: determining power information by a base station based on the position of one or more first PRBs, wherein said power information is used Determining the transmission power used to transmit the first signal from the first user device in the one or more first PRBs based on the power information by instructing the first user device And transmitting the power information from the base station to the first user equipment.

  According to a second aspect, in the first applicable embodiment, the power information includes power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. Contains at least one piece of information.

  According to a second aspect, in the second applicable embodiment, the power information is used to transmit the first signal from the first user equipment in the one or more first PRBs. The method includes transmitting power based on at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs by the base station. Determining a transmission power candidate to be used to transmit a first signal from the first user equipment in the one or more first PRBs; and the base station to transmit the first signal from the first user equipment. Used to transmit the first signal from the first user equipment on each PRB of the one or more first PRBs based on the transmit power candidate used to transmit on the one or more first PRBs And determining the maximum transmit power to be transmitted.

  According to a second applicable embodiment of the second aspect, in the third applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used for the transmission is a first power used by the base station to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs. And a second power used to transmit the first signal from the first user equipment in each of the one or more first PRBs, wherein the first power is determined by the base station The second power may be determined based on the power setting information of the one or more first PRBs, and the second power may be determined by the base station based on the power control parameter information of the one or more first PRBs.

  According to a third applicable embodiment of the second aspect, in the fourth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used to do this is the smaller of the first power and the second power.

  According to a third applicable embodiment of the second aspect, in the fifth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmit power candidate used to do the minimum power among the maximum transmit power supported by the first user equipment, the first power, and the second power.

  According to a second applicable embodiment of the second aspect, in the sixth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used for the decision is a first power, and the first power is determined by the base station based on the power setting information of the one or more first PRBs, or The transmission power candidate used to transmit the first signal from one user apparatus in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user apparatus, and the first transmission apparatus. The smaller of the powers, the first power is determined by the base station based on the power setting information of the one or more first PRBs.

  According to a second applicable embodiment of the second aspect, in the seventh applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used for the second power is a second power, and the second power is determined by the base station based on the power control parameter information of the one or more first PRBs, or The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user equipment, and The smaller of the two powers, the second power is determined by the base station based on the power control parameter information of the one or more first PRBs.

According to any one of the first to seventh applicable embodiments of the second aspect, in the eighth applicable embodiment, the power control parameter information is P _O (j), including at least one of f (j) and α (j), where j is the position number of the PRB and P _o (j) is received by the system to receive the discovery signal at the (j) PRB [0, 1] is the path loss correction factor set by the system to transmit the signal in the (j) PRB, and f (j) ) Is a power control parameter and is used to control the power increment value used to transmit a signal from the user equipment in the (j) PRB.

  According to any one of the first to eighth applicable embodiments of the second aspect, in the ninth applicable embodiment, the power setting information comprises the following items: Power corresponding to each PRB of the above first PRB, reference transmission power, offset value corresponding to each PRB of the one or more first PRBs, and the offset value corresponding to each PRB of the one or more first PRBs Includes one item of

  According to any one of the second to ninth applicable embodiments of the second aspect, in the tenth applicable embodiment, the one or more first PRBs are one PRB. And the maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs corresponds to the first signal from the first user equipment. It is the transmission power candidate used to transmit in each PRB of one or more first PRBs.

  According to any one of the second to tenth applicable embodiments of the second aspect, in the eleventh applicable embodiment, the one or more first PRBs are two or more PRBs. And the maximum transmission power used to transmit the first signal from the first user equipment in each of the one or more first PRBs is determined by the base station from the first user equipment The determination is made based on at least one transmission power candidate used to transmit the first signal in the one or more first PRBs.

  According to an eleventh applicable embodiment of the second aspect, in the twelfth applicable embodiment, the first signal is transmitted from the first user equipment in each PRB of the one or more first PRBs. The maximum transmission power used to generate the minimum power among the at least one transmission power candidate used to transmit the first signal from the first user equipment in the one or more first PRBs It is.

  According to a second aspect, or according to any one of the first to twelfth applicable embodiments of the second aspect, in the thirteenth applicable embodiment, the first signal. Of the inter-device (D2D) discovery signal, the direct D2D communication signal, the physical uplink control channel PUCCH signal from the user equipment to the base station, and the physical uplink shared channel PUSCH signal from the user equipment to the base station It is any one signal.

  According to a third aspect, there is provided a user equipment, wherein the user equipment is configured to transmit one or more first physical resource blocks (PRBs) of a first signal; A second determination unit configured to determine a transmit power used to transmit the first signal from the user equipment in the one or more first PRBs based on a position of the one or more first PRBs And a transmission unit configured to transmit the first signal in the one or more first PRBs by using the transmission power.

  According to a third aspect, in the first applicable embodiment, the transmission power is used to transmit the first signal from the user equipment in each PRB of the one or more first PRBs. The maximum transmission power which is less than the maximum transmission power and used to transmit the first signal from the user apparatus in each of the one or more first PRBs is the user apparatus by the user apparatus. The first signal is determined based on transmit power candidates used to transmit the first signal in each PRB of the one or more first PRBs, and the first signal is transmitted from the user apparatus to the one or more first PRBs. The transmission power candidate used to transmit in each PRB is determined by the user apparatus based on the position of the one or more first PRBs and power information supplied from a base station.

  According to a third aspect, in the second applicable embodiment, the power information includes power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. And the transmission power candidate used to transmit the first signal from the user apparatus in each PRB of the one or more first PRBs is the user apparatus to transmit the first signal from the user apparatus. A first power used to transmit on each PRB of one or more first PRBs, and a first power used to transmit the first signal from the user equipment on each PRB of the one or more first PRBs The first power is determined by the user apparatus based on the position of the one or more first PRBs and the power setting information of the one or more first PRBs. A second power is generated by the user equipment at the position of the one or more first PRBs. And the power control parameter information of the one or more first PRBs.

  According to a first applicable embodiment of the third aspect, in the third applicable embodiment, the power information includes power control parameter information of the user equipment and the one or more first PRBs. The transmission power candidate including power setting information and used to transmit the first signal from the user apparatus in each PRB of the one or more first PRBs includes a first power and a second power by the user apparatus. The first power is determined by the user apparatus based on the position of the one or more first PRBs and the power setting information of the one or more first PRBs. The second power is determined by the user equipment based on the positions of the one or more first PRBs and the power control parameter information of the user equipment.

  According to a first applicable embodiment of the third aspect, in the fourth applicable embodiment, the power information includes power setting information of the user equipment and power of the one or more first PRBs. The transmission power candidate that includes control parameter information and is used to transmit the first signal from the user device in each PRB of the one or more first PRBs includes a first power and a first power by the user device. The first power is determined based on two powers, the first power is determined by the user equipment based on the positions of the one or more first PRBs and the power setting information of the user equipment, and the second power is determined. The determination is made by the user device based on the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs.

  According to any one of the second to fourth applicable embodiments of the third aspect, in the fifth applicable embodiment, the one or more first signals from the user equipment The transmission power candidate used to transmit in each PRB of the first PRB is a smaller one of the first power and the second power.

  According to any one of the second to fourth applicable embodiments of the third aspect, in the sixth applicable embodiment, the one or more first signals from the user equipment The transmission power candidate used to transmit in each PRB of the first PRB is a minimum power among the maximum transmission power, the first power, and the second power supported by the user apparatus.

  According to the first applicable embodiment of the third aspect, in the seventh embodiment, the power information includes power setting information of the one or more first PRBs, and the first information is transmitted from the user apparatus. The transmission power candidate used to transmit a signal in each PRB of the one or more first PRBs is a first power, and the first power is transmitted by the user equipment to the one or more first PRBs. Determined based on the position and the power setting information of the one or more first PRBs, or used to transmit the first signal from the user equipment in each PRB of the one or more first PRBs The transmission power candidate is the smaller one of the maximum transmission power supported by the user equipment and the first power, and the first power is transmitted from the one or more first powers by the user equipment. Based on the position of one PRB and the power setting information of the one or more first PRBs It is constant.

  According to a first applicable embodiment of the third aspect, in the eighth embodiment, the power information includes power control parameter information of the one or more first PRBs, and the user equipment The transmission power candidate used to transmit a first signal in each PRB of the one or more first PRBs is a second power, and the second power is transmitted by the user apparatus to the one or more To be determined based on the position of one PRB and the power control parameter information of the one or more first PRBs, or to transmit the first signal from the user apparatus in each PRB of the one or more first PRBs The transmission power candidate used for the user is the smaller one of the maximum transmission power supported by the user apparatus and the second power, and the second power is the one by the user apparatus. The position of the first PRB and the one or more first PRBs It is determined based on the serial power control parameter information.

According to any one of the second, fourth, fifth, sixth and eighth embodiments of the third aspect, in the ninth applicable embodiment, the power control parameter information is , P _o (j), f (j), and α (j), where j is the position number of the PRB and P _o (j) is the discovery signal (j) PRB Target receive power threshold set by the system to receive at f, and f (j) is a power control parameter, and the power increase used to transmit a signal from the user equipment at the (j) PRB [Alpha] (j) パ ス [0, 1], which is used to control the value, is a path loss correction factor set by the system to transmit the signal in the (j) th PRB.

According to a ninth applicable embodiment, in the tenth applicable embodiment, the second power is generated by the user equipment according to the following formula:
It is derived based on P (j) = (P _o (j) + α (j) · PL + f (j)) [dBm],
Where P (j) is the maximum transmit power used to transmit a signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment It is.

  According to any one of the second, third, fifth, sixth and seventh embodiments of the third aspect, in the eleventh applicable embodiment, the power configuration information is The power corresponding to each PRB of the one or more first PRBs is included, and the first power is set by the user device to the position of the one or more first PRBs and each PRB of the one or more first PRBs. The power is determined based on the power corresponding to

  According to an embodiment of any one of the second, third, fifth, sixth and seventh embodiments of the third aspect, in the twelfth applicable embodiment, the power setting information is: A reference transmission power, and an offset value corresponding to each PRB of the one or more first PRBs, and the first power may be determined by the user equipment of the position of the one or more first PRBs, the reference transmission power And the offset value corresponding to each PRB of the one or more first PRBs.

  According to any one of the second, third, fifth, sixth and seventh embodiments of the third aspect, in the thirteenth applicable embodiment, the power configuration information is: The offset value corresponding to each PRB of the one or more first PRBs, and the first power being the position of the one or more first PRBs by the user equipment, the maximum supported by the user equipment It is determined based on transmission power and the offset value corresponding to each PRB of the one or more first PRBs.

  According to a third aspect, in the fourteenth applicable embodiment, the transmission power is equal to or less than the maximum transmission power used to transmit the first signal in each PRB of the one or more first PRBs. And the maximum transmission power used to transmit the first signal from the user equipment in each of the one or more first PRBs is determined by the user equipment from the user equipment. The signal is determined based on transmit power candidates used to transmit a signal on each PRB of the one or more first PRBs, and the first signal from the user device is determined on each PRB of the one or more first PRBs. The transmission power candidate to be used for transmission is determined by the user apparatus based on presetting information, and the presetting information is the transmission power corresponding to each PRB of the one or more first PRBs. Represents a candidate.

  According to a third aspect, in the fifteenth applicable embodiment, the transmission power is based on the position of the one or more first PRBs and power information supplied from a base station by the user apparatus. The power information includes the transmission power used to transmit the first signal from the user equipment in each PRB of the one or more first PRBs.

  According to first to fourteenth applicable embodiments of the third aspect, in the sixteenth applicable embodiment, the one or more first PRBs are one PRB, and from the user equipment The maximum transmission power used to transmit the first signal in each PRB of the one or more first PRBs transmits the first signal from the user equipment in each PRB of the one or more first PRBs The transmit power candidate used to

  According to first to fourteenth applicable embodiments of the third aspect, in the seventeenth applicable embodiment, the one or more first PRBs are two or more PRBs, and the user equipment The maximum transmission power used to transmit the first signal from each of the one or more first PRBs from the one or more first PRBs is determined by the user apparatus from the one or more first signals from the user apparatus. It is determined based on at least one transmission power candidate used to transmit in one PRB.

  According to a seventeenth applicable embodiment of the third aspect, in the eighteenth applicable embodiment, the first signal is transmitted from the user apparatus in each of the one or more first PRBs. The maximum transmission power used for is the lowest power among the at least one transmission power candidate used to transmit the first signal from the user equipment in the one or more first PRBs.

  According to first to eighteenth applicable embodiments of the third aspect, in the nineteenth applicable embodiment, the first signal is an inter-device (D2D) discovery signal, a direct communication signal of D2D. It is a signal of any one of a physical uplink control channel PUCCH signal from a user apparatus to a base station and a physical uplink shared channel PUSCH signal from a user apparatus to a base station.

  According to a fourth aspect, a base station is provided, wherein the base station is a first determination unit configured to determine power information based on the position of one or more first PRBs, the power The transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs based on the power information by instructing the first user equipment using information The determining unit; and a transmitting unit configured to transmit the power information to the first user equipment.

  According to a fourth aspect, in the first applicable embodiment, the power information includes power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. Contains at least one piece of information.

  According to a fourth aspect, in the second applicable embodiment, the power information is used to transmit the first signal from the first user equipment in the one or more first PRBs. And transmitting power, wherein the base station determines the first user based on at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. A second determining unit configured to determine a transmit power candidate to be used to transmit the first signal from the device in the one or more first PRBs; and the first signal from the first user device Used to transmit the first signal from the first user equipment on each PRB of the one or more first PRBs based on the transmit power candidate used to transmit on the one or more first PRBs A third determination unit configured to determine the maximum transmit power to be , Further comprising a.

  According to a second applicable embodiment of the fourth aspect, in the third applicable embodiment, the first signal is transmitted from the first user equipment in each PRB of the one or more first PRBs. The transmission power candidate used for transmitting the first signal used by the base station to transmit the first signal from the first user apparatus in each PRB of the one or more first PRBs, and The first power is determined based on a second power used to transmit the first signal from each of the one or more first PRBs from the first user equipment, the first power being determined by the base station. The second power may be determined based on the power setting information of the one or more first PRBs, and the second power may be determined by the base station based on the power control parameter information of the one or more first PRBs.

  According to a third applicable embodiment of the fourth aspect, in the fourth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used to do this is the smaller of the first power and the second power.

  According to a third applicable embodiment of the fourth aspect, in the fifth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmit power candidate used to do the minimum power among the maximum transmit power supported by the first user equipment, the first power, and the second power.

  According to a second applicable embodiment of the fourth aspect, in the sixth applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used for the decision is a first power, and the first power is determined by the base station based on the power setting information of the one or more first PRBs, or The transmission power candidate used to transmit the first signal from one user apparatus in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user apparatus, and the first transmission apparatus. The smaller of the powers, the first power is determined by the base station based on the power setting information of the one or more first PRBs.

  According to a second applicable embodiment of the fourth aspect, in the seventh applicable embodiment, the first signal is transmitted from the first user equipment on each PRB of the one or more first PRBs. The transmission power candidate used for the second power is a second power, and the second power is determined by the base station based on the power control parameter information of the one or more first PRBs, or The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user equipment, and The smaller of the two powers, the second power is determined by the base station based on the power control parameter information of the one or more first PRBs.

According to any one of the first to seventh applicable embodiments of the fourth aspect, in the eighth applicable embodiment, the power control parameter information is P _O (j), including at least one of f (j) and α (j), where j is the position number of the PRB and P _o (j) is received by the system to receive the discovery signal at the (j) PRB [0, 1] is the path loss correction factor set by the system to transmit the signal in the (j) PRB, and f (j) ) Is a power control parameter and is used to control the power increment value used to transmit a signal from the user equipment in the (j) PRB.

  According to any one of the first to eighth applicable embodiments of the fourth aspect, in the ninth applicable embodiment, said power setting information comprises the following items: said one or more Power corresponding to each PRB of the first PRB, an offset value corresponding to each PRB of the one or more first PRBs, and the offset value corresponding to each PRB of the one or more first PRBs Includes one of my items.

  According to any one of the second to ninth applicable embodiments of the fourth aspect, in the tenth applicable embodiment, the one or more first PRBs are one PRB. And the maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs corresponds to the first signal from the first user equipment. It is the transmission power candidate used to transmit in each PRB of one or more first PRBs.

  According to any one of the second to tenth applicable embodiments of the fourth aspect, in the eleventh applicable embodiment, the one or more first PRBs are two or more PRBs. And the maximum transmission power used to transmit the first signal from the first user equipment in each of the one or more first PRBs is determined by the base station from the first user equipment The determination is made based on at least one transmission power candidate used to transmit the first signal in the one or more first PRBs.

  According to an eleventh applicable embodiment of the fourth aspect, in the twelfth applicable embodiment, the first signal is transmitted from the first user equipment in each of the one or more first PRBs. The maximum transmission power used to generate the minimum power among the at least one transmission power candidate used to transmit the first signal from the first user equipment in the one or more first PRBs It is.

  According to a fourth aspect, or according to any one of the first to twelfth applicable embodiments of the second aspect, in the thirteenth applicable embodiment, the first signal. Is any of the inter-device D2D discovery signal, the D2D direct communication signal, the physical uplink control channel PUCCH signal from the user equipment to the base station, and the physical uplink shared channel PUSCH signal from the user equipment to the base station It is one signal.

  Based on the technical solutions described so far, in various embodiments of the present invention, the first user equipment determines one or more first physical resource blocks to be utilized for transmitting the first signal. The transmission power used to transmit the first signal in the one or more first PRBs may be determined based on the position of the one or more first PRBs, and the first signal may be determined. Can be transmitted by using the transmission power in the one or more first PRBs. Therefore, network performance can be improved by being able to adjust the transmission power of the signal according to the situation.

  BRIEF DESCRIPTION OF DRAWINGS To describe the technical solutions in the various embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required for describing the various embodiments of the present invention. As will be apparent, the attached drawings in the following description merely illustrate some embodiments of the present invention, and those skilled in the art will appreciate that other drawings may be attached thereto. You can think of it without spending creative effort from your drawings.

5 is a schematic flow chart of a signal transmission method according to an embodiment of the present invention. 7 is a schematic flow chart of a signal transmission method according to another embodiment of the present invention. 7 is a schematic flow chart of a signal transmission method according to yet another embodiment of the present invention. 7 is a schematic flow chart of a signal transmission method according to yet another embodiment of the present invention. 7 is a schematic flow chart of a signal transmission method according to yet another embodiment of the present invention. FIG. 6 is a schematic block diagram of a user equipment according to one embodiment of the present invention. FIG. 7 is a schematic block diagram of a user equipment according to another embodiment of the present invention. FIG. 5 is a schematic block diagram of a base station according to one embodiment of the present invention. FIG. 7 is a schematic block diagram of a base station according to another embodiment of the present invention. FIG. 7 is a schematic block diagram of a base station according to yet another embodiment of the present invention;

  The following clearly and completely describes the technical solutions in the various embodiments of the present invention with reference to the attached drawings in the various embodiments of the present invention. As will be apparent, the various embodiments described are a part rather than all of the various embodiments of the present invention. All other embodiments that can be conceived by those skilled in the art based on various embodiments of the present invention without spending creative effort are intended to be included in the protection scope of the present invention.

  It should be understood that the technical solutions of the various embodiments of the present invention can be applied to various communication systems, such as, for example, the Global System for Mobile communication (GSM). (Registered Trademark), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA (registered trademark)) system, General Packet Radio Service (General Packet Radio Service, GRPS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Communication System (Universal Mobile Communication System (Universal Mobile Communication System) Telecommunications System (UMTS) and Worldwide Interoperability Microwave Access (Worldwide Interoperability) for Microwave Access (WiMAX) communication system.

  Various embodiments of the present invention may be used in wireless networks conforming to different standards. A radio access network can include different network elements in different systems. For example, the network elements of LTE and LTE-A radio access networks include eNBs (eNodeBs, evolved Node Bs), and the network elements of WCDMA (Wideband Code Division Multiple Access System) radio access networks include RNCs. (Radio Network Controller, Radio Network Controller) and Node B. Similarly, other wireless networks such as WiMAX (Worldwide Interoperability for Microwave Access) are similar to the solutions in the various embodiments of the present invention, but with the relevant modules of the base station system It is also possible to use solutions that differ only in their differences. No limitations are imposed by the various embodiments of the present invention. However, for the sake of clarity, the following various embodiments are described using eNodeB and NodeB as an example.

  In various embodiments of the present invention, the user equipment (UE, User Equipment) may be, but is not limited to, a mobile base station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile terminal (Mobile Terminal) It should further be understood that the invention includes mobile telephones, handsets, portable equipment and the like. The user equipment may communicate with one or more core networks by using a radio access network (RAN). For example, the user device may be a mobile phone (also referred to as a "cellular" telephone), a computer with wireless communication capabilities, etc., and the user device may further be a portable terminal device, a pocket size device, It can be a hand-held device, a computer built-in device, or an on-vehicle mobile device.

  FIG. 1 is a schematic flow chart of a signal transmission method according to one embodiment of the present invention. As shown in FIG.

  Step 110. The first user device includes determining one or more first physical resource blocks (PRBs) to be used to transmit a first signal.

  In detail, the first user equipment determines one or more first PRBs to be used to transmit the first signal based on the scheduling information of the base station, which configuration is an embodiment of the present invention. Not limited by For example, the first user device may further determine one or more first PRBs to be utilized to transmit the first signal based on the resource utilization state, or the first signal based on the preset. One or more first PRBs may be determined to be utilized to transmit

  Step 120. The first user equipment determines the transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs based on the position of the one or more first PRBs.

  In particular, the first user equipment may transmit the first signal in one or more first PRBs from the first user equipment based on the absolute position of said one or more first PRBs in the time-frequency resource It is possible to determine the transmission power used for the For example, the first user equipment may be used to transmit the first signal from the first user equipment in one or more first PRBs based on the index number of said one or more first PRBs in the time-frequency resource The transmission power to be transmitted can be determined. Alternatively, the first user equipment may further transmit the first signal from the first user equipment in one or more first PRBs based on the relative position of the one or more first PRBs in the time-frequency resource. The transmit power used to do this can be determined. For example, the first user device may transmit the first signal from the first user device with the one or more first PRBs based on the position of the one or more first PRBs relative to the PRBs utilized to transmit the second signal. The transmit power used to do this can be determined.

  Step 130: The first user equipment transmits the first signal in one or more first PRBs by using transmission power.

  Thus, in an embodiment of the present invention, the first user equipment can determine one or more first physical resource blocks PRB used to transmit the first signal, and one or more first PRBs are Based on the position, the transmission power used to transmit the first signal in the one or more first PRBs can be determined, wherein using the transmission power in the first signal in the one or more first PRBs Can be sent. In embodiments of the present invention, the transmit power of the signal may be adjusted based on the position of the PRB utilized to transmit the signal, such that a specific transmit power at a specific time-frequency resource position, It can be set based on the performance requirements of the network communication, and the transmission power of the signal can be adjusted according to the situation to improve the performance of the network communication.

It should be understood that the transmit power is the power in the actual application and can be less than or equal to the maximum transmit power.

  In embodiments of the present invention, one or more of the first physical resource blocks (PRBs) can be one PRB, or a plurality of PRBs, eg 2, 3, 5, or 10 It should be understood that it can be a PRB, or even one or more physical resource block pairs (PRB Pairs), and this configuration is not limited by the embodiments of the present invention.

  According to embodiments of the present invention, the first signal may be an inter-device (D2D) discovery signal, or it may be a D2D direct communication code, or further, from the first user equipment to the base station It may be an uplink signal to be transmitted. Specifically, the uplink signal transmitted from the user apparatus to the base station is a physical uplink control channel (PUCCH) signal from the user apparatus to the base station, or a physical uplink shared channel (PUSCH) from the user apparatus to the base station ), And this configuration is not limited by the embodiments of the present invention.

  The first user equipment can determine the transmission power used to transmit the first signal from the first user equipment in one or more first PRBs based on the transmission power information transmitted from the base station It should be understood that the first user device can determine the transmission power used to transmit the first signal from the first user device in the one or more first PRBs based on the preset information. .

  In the following, the first user equipment determines the transmission power used to transmit the first signal from the first user equipment in one or more first PRBs based on the transmission power information transmitted from the base station Describe the process in detail.

  Therefore, in another embodiment, in step 120, the first user equipment is used to transmit the first signal from the first user equipment in one or more first PRBs based on the message transmitted from the base station. The transmission power is a transmission power equal to or less than the maximum transmission power used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs, and The maximum transmission power used to transmit the first signal from the user equipment in each PRB of the one or more first PRBs is the first user equipment to transmit the first signal from the first user equipment to one or more first PRBs. Transmission power candidates determined based on transmission power candidates used for transmission in each of the PRBs, and used for transmitting the first signal from the first user device in each PRB of one or more first PRBs Is the location of one or more first PRBs and the base station, according to the first user equipment It is determined based on the transmission power information supplied from

  FIG. 2 is a schematic flow chart of a signal transmission method according to another embodiment of the present invention.

  Specifically, as shown in FIG.

  Step 210. The first user equipment determines one or more first physical resource blocks (PRBs) to be utilized to transmit a first signal.

  Step 221. The first user equipment transmits the first signal from the first user equipment in each of the one or more first PRBs based on the positions of the one or more first PRBs and the power information supplied from the base station. Determine the transmit power candidate to be used for

  Step 222. The first user equipment is configured to transmit one first signal from the first user equipment based on the transmission power candidate used to transmit the first signal from the first user equipment in each of one or more first PRBs. The maximum transmission power used to transmit in each PRB of the above first PRB is determined.

  Step 230. The first user equipment transmits the first signal in one or more first PRBs by using less than the maximum transmission power.

  Note that step 210 of FIG. 2 corresponds to step 110 of FIG. 1, and step 230 corresponds to step 130 of FIG. Details are not described again here to avoid repetition.

  It should be understood that the transmit power in step 130 of FIG. 1 can be the transmit power in a practical application and can be a transmit power less than or equal to the maximum transmit power. The maximum transmission power in step 222 is the maximum value of transmission power. That is, in practical applications, the transmit power can be equal to or less than the maximum transmit power.

  In detail, the first user apparatus receives a message supplied from the base station and confirms power information based on the message supplied from the base station, and the power information is one or more by the base station. Is determined based on the position of the first PRB. The first user equipment determines transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs based on the power information, and transmits the second PRB transmitted in the second PRB. The interference caused by the first signal in the signal is lower than the preset level. As the distance between the first PRB and the second PRB decreases, the transmission power used to transmit the first signal in the first PRB decreases. Stated differently, the base station can determine the message based on the distance between the first PRB and the second PRB, and the first user equipment validates the power information based on the message.

  The second signal may be a discovery signal of D2D (between devices), or may be a direct communication code of D2D, or additionally transmitted from the first user equipment or the second user equipment to the base station It should be understood that the uplink signal may be used and this configuration is not limited by the embodiments of the present invention. Specifically, if the first signal is a D2D (inter-device) discovery signal or a direct communication signal, the second signal may be an uplink signal transmitted from the user equipment to the base station. If the first signal is an uplink signal transmitted from the user equipment to the base station, the second signal may be a discovery signal of D2D (between devices) or a direct communication signal. The uplink signal transmitted from the user equipment to the base station can be a physical uplink control channel (PUCCH) signal from the user equipment to the base station, or a physical uplink shared channel (PUSCH from the user equipment to the base station) ), And this configuration is not limited by the embodiments of the present invention.

  It should be understood that the first user equipment can verify the power information by receiving one or more messages supplied from the base station. In other words, the aforementioned power information may be transmitted in one message, and this configuration is not limited in the embodiment of the present invention, for example, power information may be transmitted in a plurality of messages. can do.

  Thus, in an embodiment of the present invention, the power used to transmit the first signal from the user equipment in the one or more first PRBs is one or more first PRBs used to transmit the first signal. The first signal may be transmitted based on transmission power in one or more first PRBs. In embodiments of the present invention, the transmit power of the signal may be adjusted based on the position of the PRB utilized to transmit the signal, so the transmit power of the PRB of the first signal transmits the first signal. Can be set based on the distance between the PRB used for transmitting and the PRB used for transmitting the second signal, and the transmission power of the signal can be adjusted according to the situation , Interference between the first signal and the second signal can be reduced. Expressed in another way, in the embodiment of the present invention, the transmission power used to transmit the signal in the first PRB can be determined based on the position of the first PRB with respect to the second PRB. When the distance between the first PRB and the second PRB becomes short, the transmission power used to transmit the first signal in the first PRB decreases, so that the first signal transmitted in the first PRB causes the second PRB to The interference caused to the transmitted second signal can be reduced to improve the performance of the network communication.

  It should be understood that the second signal can be sent from the first user device or can be sent from the second user device. The second PRB may be one PRB, or may be a plurality of PRBs, for example two, three, five or ten PRBs, or even one or more physical It should be understood that the resource block pair can be PRB Pair. That is, the second signal can be transmitted by occupying one PRB, or can be transmitted by occupying a plurality of PRBs, and this configuration is not limited by the embodiment of the present invention. .

  According to an embodiment of the present invention, the aforementioned power information may include power control parameter information of a first user equipment and power setting information of one or more first PRBs, and the first signal from the first user equipment may be used. The transmission power candidate to be used to transmit in each PRB of one or more first PRBs is determined by the first user equipment based on the first power and the second power, the first power being the first user The device determines the position of the one or more first PRBs and the power setting information of the one or more first PRBs, and the second power is determined by the first user device to the position of the one or more first PRBs, and It is determined based on power control parameter information of the first user device. It should be understood that the power control parameter information can be made unrelated to the position of the PRB.

  As another configuration, and as another embodiment, the power information includes power setting information of the first user equipment and power control parameter information of one or more first PRBs, and the first signal from the first user equipment is 1 The transmission power candidate used to transmit in each PRB of the one or more first PRBs is determined by the first user device based on the first power and the second power, the first power being determined by the first user device , Determined based on the position of the one or more first PRBs and the power setting information of the first user equipment, the second power is determined by the first user equipment to the position of the one or more first PRBs, and the one or more It is determined based on power control parameter information of the first PRB. It should be understood that the power setting information may not be related to the position of the PRB.

  As another configuration, and as another embodiment, the power information includes at least one of power setting information of one or more first PRBs and power control parameter information of one or more first PRBs. it can. That is, the power information may include only power setting information of one or more first PRBs, or may include only power control parameter information of one or more first PRBs, or one or more first PRBs. And power control parameter information of one or more first PRBs. Therefore, the first user apparatus may transmit the first signal from the first user apparatus based on at least one of the power setting information of the one or more first PRBs and the power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit in one or more first PRBs may be determined.

  In an embodiment of the present invention, power setting information of one or more first PRBs and power control parameter information of one or more first PRBs can be transmitted by using one message, or two or more It should also be understood that transmission may be made using different messages, and this configuration is not limited by the embodiments of the present invention.

  Hereinafter, the power information includes only power setting information of one or more first PRBs, only power control parameter information of one or more first PRBs, or power setting information of one or more first PRBs, The case of including both information of power control parameter information of one or more first PRBs will be individually described.

  Therefore, as another embodiment, when the power information includes power setting information of one or more first PRBs and power control parameter information of one or more first PRBs, one first signal from the first user apparatus is used. The transmission power candidate used to transmit in each PRB of the above first PRB is used by the first user equipment to transmit the first signal from the first user equipment in one or more first PRBs. The power is determined based on one power and a second power used to transmit the first signal from the first user equipment in the one or more first PRBs, wherein the first power is one or more according to the first user equipment. The second power is determined by the first user equipment based on the position of the first PRB and the power setting information of the one or more first PRBs, the position of the one or more first PRBs, and the one or more first PRBs. It is determined based on the power control parameter information of

  Furthermore, as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is a smaller one of the first power and the second power. Power of the

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user device in each PRB of one or more first PRBs is supported by the first user device Minimum power among the maximum transmission power, the first power, and the second power.

  Therefore, as another embodiment, when the power information includes power setting information of one or more first PRBs, it is used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs. The transmission power candidate to be transmitted is the first power, and in this case, the first power is determined by the first user apparatus based on the positions of the one or more first PRBs and the power setting information of the one or more first PRBs. Power candidate used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs is the maximum transmission power supported by the first user equipment, and The smaller of the powers, wherein the first power is determined by the first user equipment based on the position of the one or more first PRBs and the power setting information of the one or more first PRBs Ru.

  Therefore, as another embodiment, when the power information includes power control parameter information of one or more first PRBs, to transmit a first signal from the first user equipment in each PRB of one or more first PRBs The transmission power candidate to be used is the second power, where the second power is based on the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs by the first user equipment. Or the transmit power candidate used to transmit the first signal from the first user device in each PRB of the one or more first PRBs is the maximum transmit power supported by the first user device, And the second power, where the second power is transmitted by the first user equipment to the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs. It is decided based on.

  Optionally, as another embodiment, the power control parameter information includes at least one of Po (j), f (j), and α (j), where j is the position of the PRB No., Po (j) is the target received power threshold set by the system to receive the discovery signal at the (j) PRB, f (j) is the power control parameter, and the user equipment (J) is used to control the power increment value used to transmit the signal in the (j) PRB, and α (j) ∈ [0, 1] transmit the signal in the (j) PRB Path loss correction coefficient set by the system.

In particular, the second power is provided by the first user device:
It is derived based on P (j) = (Po (j) + α (j) · PL + f (j)) [dBm],
Where P (j) is the second power used to transmit a signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment.

  f (j) may be a dynamic signaling control parameter, or may be a quasi-static signaling control parameter, or may additionally be a static signaling control parameter, this configuration according to the invention It should be understood that the invention is not limited by the embodiments of the invention. The system may not be able to identify dynamic power control per PRB. In this case, f (j) drops to a predetermined value and is replaced by f. If the system does not apply dynamic power control to the discovery signal, f (j) or f is equal to zero.

It should be understood that the system can set the same target received power threshold used to receive the discovery signal at each PRB. In this case, P _o (j) drops to a predetermined value and is replaced, for example, by P _o . For example, α (j) can be 0, 0.4, 0.6, 0.7, 0.8, 0.9, and so on. The system can further set the same path loss correction factor used to transmit the discovery signal on each PRB. In this case, α (j) is reduced to a predetermined value and replaced, for example, by α. PL includes the path loss from the base station to the UE, and this path loss is obtained by calculation by the UE. For example, the path loss from the base station to the UE can be obtained by calculating the difference between the transmission power used to transmit the reference signal from the system and the detected reception power of the reference signal.

  Optionally, in embodiments of the present invention, the power setting information may have multiple types of settings. Specifically, as another embodiment, the power setting information includes power corresponding to each PRB of the one or more first PRBs, and the first power is a position of the one or more first PRBs by the first user device. , And power corresponding to each PRB of one or more first PRBs. In other words, the first user equipment checks the power corresponding to the position of each PRB of one or more first PRBs among the power setting information, and the user equipment transmits the corresponding powers by one or more. Determined based on the position of each PRB of the first PRB.

  As another configuration, and as another embodiment, the power setting information includes reference transmission power and an offset value corresponding to each PRB of one or more first PRBs, wherein the first power is transmitted by the first user equipment, It is determined based on the position of the one or more first PRBs, the reference transmission power, and the offset value corresponding to each PRB of the one or more first PRBs.

  Specifically, the first user equipment obtains reference transmission power from among the power setting information, and in this case, the reference transmission power is the maximum power among the transmission powers set for all PRBs, for example, Pmax. The offset value may be an offset value of each PRB based on the reference transmission power. In other words, the offset value is a decrease value of the first power of each PRB based on the reference transmission power, for example, Poffset (j). For each PRB, the first user equipment obtains the first power of each PRB by using Pmax-Poffset (j).

  As another configuration, and as another embodiment, the power setting information includes an offset value corresponding to each PRB of the one or more first PRBs, and the first power is transmitted by the first user device to the one or more first It is determined based on the position of one PRB, the maximum transmission power supported by the first user equipment, and the offset value corresponding to each PRB of one or more first PRBs.

  Specifically, the offset value is an offset value based on the maximum transmission power supported by the first user equipment, in which case, for example, the maximum transmission power supported by the first user equipment is Pue_max. Expressed in another way, the offset value is a decrement value of the first power of each PRB based on the maximum transmission power supported by the first user equipment, eg Poffset. For each PRB, the first user equipment obtains the first power of each PRB by using Pue_max-Poffset.

  Optionally, as another embodiment, the transmit power is a power less than or equal to the maximum transmit power used to transmit the first signal in each PRB of the one or more first PRBs, and the first user equipment The maximum transmission power used to transmit the first signal from each of the one or more first PRBs in each of the one or more first PRBs is determined by the first user equipment from each of the first user equipment for each of the one or more first PRBs. The transmission power candidate determined based on the transmission power candidate used for transmission in the PRB and used for transmitting the first signal from the first user apparatus in each PRB of one or more first PRBs is Determined by one user device based on preset information, where the preset information represents transmit power candidates corresponding to each PRB of one or more first PRBs.

  Specifically, the first user equipment receives the message transmitted from the base station and obtains the power information transmitted in the message, in this case, the power information is one to one with the position of all the PRBs. The user apparatus discovers the transmission power corresponding to each PRB among the power information based on the position of each PRB including the corresponding transmission power.

  So far, the process of determining the transmission power used by the first user equipment to transmit the first signal from the first user equipment in one or more first PRBs based on the power information transmitted from the base station Has been described in detail.

  The first user equipment may further determine the transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs based on the preset information.

  Specifically, as another embodiment, the transmission power is determined by the first user equipment based on the position of one or more first PRBs and the power information supplied from the base station, in which case the power information is , And transmit power used to transmit a first signal from a first user device in each PRB of one or more first PRBs. Optionally, but in another embodiment, where one or more first PRBs are one PRB, used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs The maximum transmission power to be transmitted is a transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, if the one or more first PRBs are two or more PRBs, to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The maximum transmit power to be used is determined by the first user device based on at least one transmit power candidate used to transmit the first signal from the first user device in the one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first signal from the first user apparatus The minimum power among at least one transmission power candidate used for transmission in one or more first PRBs.

  Heretofore, the signal transmission method according to the embodiment of the present invention as viewed from the side of the first user equipment has been described in detail with reference to FIGS. 1 and 2. In the following, the signal transmission method according to one embodiment of the present invention seen from the base station side will be described with reference to FIG.

  It should be understood that the signal transmission method described from the base station side corresponds to the signal transmission method described from the first user equipment side. For the sake of simplicity, the details will not be repeated here again.

  FIG. 3 is a schematic flowchart of a signal transmission method according to still another embodiment of the present invention. The method of FIG. 3 is consistent with the method of FIG. 1, so details will not be described again here. As shown in FIG.

  Step 310. The base station determines the power information based on the position of the one or more first PRBs, and in this case, using the power information to instruct the first user equipment, the first user equipment based on the power information. To determine the transmission power used to transmit the first signal in one or more first PRBs.

  Step 320. The base station transmits power information to the first user equipment.

  Thus, in an embodiment of the present invention, the base station determines the power information based on the position of the one or more first PRBs, and the base station transmits the power information to the first user equipment to obtain the first user. The device may determine transmission power used to transmit the first signal from the first user device in the one or more first PRBs based on the power information. In this way, the transmission power of the signal can be adjusted according to the situation based on the position of the PRB, thus improving the network performance.

  In embodiments of the present invention, one or more of the first physical resource blocks (PRBs) can be one PRB, or a plurality of PRBs, eg 2, 3, 5, or 10 It should be understood that it can be a PRB, or even one or more physical resource block pairs PRB Pair, and this configuration is not limited by the embodiments of the present invention.

  The first signal may be an inter-device (D2D) discovery signal, or may be a D2D direct communication signal, or may be an uplink signal transmitted from the first user device to the base station Can. Specifically, the uplink signal transmitted from the user equipment to the base station can be a physical uplink control channel (PUCCH) signal from the user equipment to the base station, or physical uplink from the user equipment to the base station It may be a shared channel (PUSCH) signal, and this configuration is not limited by the embodiments of the present invention.

  Optionally, as another embodiment, the power information includes at least one of power setting information of one or more first PRBs and power control parameter information of one or more first PRBs.

  It should be understood that the base station can transmit power information by delivering one or more messages. Put another way, the power information can be transmitted in one message or in multiple messages. The one or more messages are determined by the base station based on the position of the one or more first PRBs, and the first user equipment receives the first signal from the first user equipment based on the one or more messages. The transmission power used to transmit in one PRB can be determined, and this configuration is not limited by the embodiments of the present invention.

  Furthermore, in an embodiment of the present invention, the base station can determine the power information based on the position of at least one or more first PRBs, and the base station transmits the power information to the first user equipment, Based on the power information, the first user device can determine the power used to transmit the first signal from the first user device in the one or more first PRBs. Furthermore, as the distance between the one or more first PRBs and the second PRBs decreases, the transmission power used to transmit the first signal in the one or more first PRBs decreases. Because the transmission power of the signal can be adjusted accordingly based on the position of the PRB, the first signal causes less interference to the second signal transmitted in the second PRB than a preset value. Furthermore, in embodiments of the present invention, the power used to transmit the first signal at one location may be adjusted based on this location, and at the other location by the first signal transmitted. Network performance can be improved because the interference caused to the transmitted second signal can be reduced.

  The second signal may be transmitted from the first user device or may be transmitted from the second user device. Furthermore, the second PRB can be one PRB, or a plurality of PRBs, for example two, three, five, or ten PRBs, or even one or more physical It should be understood that the resource block pair can be PRB Pair. The second signal can be transmitted by occupying one PRB, or can be transmitted by occupying a plurality of PRBs, and this configuration is not limited by the embodiments of the present invention.

  The second signal may be a D2D discovery signal, or may be a D2D direct communication signal, or may be an uplink signal transmitted from the first user equipment or the second user equipment to the base station It should be understood that this configuration is not limited by the embodiments of the present invention. In particular, if the first signal is a D2D discovery signal or a direct communication signal, the second signal may be an uplink signal transmitted from the user equipment to the base station. If the first signal is an uplink signal transmitted from the user equipment to the base station, the second signal may be a D2D discovery signal or a direct communication signal. The uplink signal transmitted from the user equipment to the base station can be a physical uplink control channel (PUCCH) signal from the user equipment to the base station, or a physical uplink shared channel (PUSCH from the user equipment to the base station) ), And this configuration is not limited by the embodiments of the present invention.

  In an embodiment of the present invention, the base station can transmit power information to the user equipment, wherein the power information is used to transmit the first signal from the user equipment in one or more first PRBs. It should be understood that it represents transmission power. The base station may further transmit power information to the user equipment, where the power information includes transmit power used to transmit the first signal from the user equipment in the one or more first PRBs. .

  Therefore, as another embodiment, the power information includes at least one of power setting information of one or more first PRBs and power control parameter information of one or more first PRBs.

  In particular, according to an embodiment of the present invention, the power control parameter information includes at least one of Po (j), f (j) and α (j), where j is a PRB Where Po (j) is the target receive power threshold set by the system to receive the discovery signal at the (j) PRB, and α (j) ∈ [0, 1] is the signal (J) A path loss correction factor set by the system to transmit in PRB, and f (j) is a power control parameter, and for transmitting a signal from the user equipment in (j) PRB Used to control the power increase value used.

  f (j) may be a dynamic signaling control parameter, or may be a quasi-static signaling control parameter, or may additionally be a static signaling control parameter, this configuration according to the invention It should be understood that the invention is not limited by the embodiments of the invention. The system may not be able to identify dynamic power control per PRB. In this case, f (j) is reduced to a predetermined value and replaced with f. If the system does not apply dynamic power control to the discovery signal, f (j) or f is equal to zero.

It should be understood that the system can set the same target received power threshold used to receive the discovery signal at each PRB. In this case, P _o (j) drops to a predetermined value and is replaced, for example, by P _o . For example, α (j) can be 0, 0.4, 0.6, 0.7, 0.8, 0.9, and so on. The system can further set the same path loss correction factor used to transmit the discovery signal on each PRB. In this case, α (j) is reduced to a predetermined value and replaced, for example, by α. PL includes the path loss from the base station to the UE, and this path loss is obtained by calculation by the UE. For example, the path loss from the base station to the UE can be obtained by calculating the difference between the transmission power used to transmit the reference signal from the system and the detected reception power of the reference signal.

The base station transmits the power control parameter information described above to the first user apparatus, whereby the first user apparatus transmits the first signal from the first user apparatus to one or more first PRBs based on the power control parameter information. To determine the power used to transmit at

In particular, the transmission power is determined by the first user device by the following equation:
It is derived based on P (j) = (Po (j) + α (j) PL + f (j)) [dBm],
Where P (j) is the transmit power used to transmit the signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment.

  Optionally, as another embodiment, the power information comprises transmit power used to transmit the first signal from the first user equipment in one or more first PRBs, the method comprising: The first signal from the first user equipment based on at least one of the power setting information of the one or more first PRBs and the power control parameter information of the one or more first PRBs, the one or more first PRBs Determining a transmit power candidate to be used to transmit in the base station, based on the transmit power candidate used by the base station to transmit the first signal from the first user equipment in the one or more first PRBs. Determining the maximum transmission power used to transmit the first signal from the first user device in each PRB of the one or more first PRBs.

  Specifically, as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is transmitted by the base station from the first user apparatus A first power used to transmit a first signal on each PRB of one or more first PRBs, and a first user device for transmitting a first signal on each PRB of one or more first PRBs The first power is determined by the base station based on the power setting information of the one or more first PRBs, and the second power is determined by the base station. It is determined based on the power control parameter information of the first PRB described above.

  Specifically, as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is one of the first power and the second power. Power of the smaller one.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user device in each PRB of one or more first PRBs is supported by the first user device Minimum power among the maximum transmission power, the first power, and the second power.

  Optionally, as another embodiment, the transmit power candidate used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs is the first power, in this case: The first power is determined by the base station based on power setting information of the one or more first PRBs, or for transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs. The transmit power candidates used are the maximum transmit power supported by the first user equipment and the smaller of the first powers, in which case the first power is one or more by the base station. It is determined based on the power setting information of the first PRB.

  Optionally, as another embodiment, the transmit power candidate used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs is the second power, in this case: The second power may be determined by the base station based on power control parameter information of the one or more first PRBs, or to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The transmission power candidate used for the maximum transmission power supported by the first user equipment and the smaller one of the second powers, in this case, the second power is one or more by the base station The power control parameter information of the first PRB is determined.

  Specifically, as another embodiment, the power control parameter information includes at least one of Po (j), f (j), and α (j), where j is the position number of the PRB. Where Po (j) is the target received power threshold set by the system to receive the discovery signal at the (j) PRB, and α (j) ∈ [0, 1] represents the signal at the (j) ) The path loss correction factor set by the system to transmit in PRB, and f (j) is a power control parameter, and is used to transmit the signal from the user equipment in (j) PRB Used to control the power increase value.

In detail, the second power is the following formula:
It is derived based on P (j) = (Po (j) + α (j) PL + f (j)) [dBm],
Where P (j) is the second power used to transmit a signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment.

  f (j) may be a dynamic signaling control parameter, or may be a quasi-static signaling control parameter, or may additionally be a static signaling control parameter, this configuration according to the invention It should be understood that the invention is not limited by the embodiments of the invention. The system may not be able to identify dynamic power control per PRB. In this case, f (j) drops to a predetermined value and is replaced by f. If the system does not apply dynamic power control to the discovery signal, f (j) or f is equal to zero.

  It should be understood that the system can set the same target received power threshold used to receive the discovery signal at each PRB. In this case, Po (j) is reduced to a predetermined value and replaced, for example, by Po. For example, α (j) can be 0, 0.4, 0.6, 0.7, 0.8, 0.9, and so on. The system can further set the same path loss correction factor used to transmit the discovery signal on each PRB. In this case, α (j) is reduced to a predetermined value and replaced, for example, by α. PL includes the path loss from the base station to the UE, and this path loss is obtained by calculation by the UE. For example, the path loss from the base station to the UE can be obtained by calculating the difference between the transmission power used to transmit the reference signal from the system and the detected reception power of the reference signal.

Specifically, as another embodiment, the power setting information includes the following items:
Power corresponding to each PRB of one or more first PRBs,
Reference transmission power, and an offset value corresponding to each PRB of one or more first PRBs, and
One item of offset values corresponding to each PRB of one or more first PRBs is included.

  Furthermore, if the power setting information includes power corresponding to each PRB of the one or more first PRBs, the base station transmits the first signal from the first user apparatus to the one or more first PRBs based on the power setting information. Determine the first power used to transmit on each PRB.

  In another configuration, the power setting information includes reference transmission power and an offset value corresponding to each PRB of one or more first PRBs, and the base station transmits a first signal from the first user apparatus based on the power setting information. To determine the first power used to transmit on each PRB of the one or more first PRBs.

  Specifically, the base station sets the reference transmission power from among the power setting information, and in this case, the reference transmission power is the maximum power among a plurality of transmission powers set for all PRBs, for example, Pmax. The offset value may be an offset value of each PRB based on the reference transmission power. Expressed in another way, the offset value is a decrease value of the first power of each PRB with respect to the reference transmission power, eg, Poffset (j). For each PRB, the base station obtains the first power of each PRB based on Pmax−Poffset (j).

  In another configuration, the power setting information includes reference transmission power and an offset value corresponding to each PRB of one or more first PRBs, and the base station transmits a first signal from the first user apparatus based on the power setting information. To determine the first power used to transmit on each PRB of the one or more first PRBs.

  Specifically, the offset value is an offset value based on the maximum transmission power supported by the first user equipment, in which case, for example, the maximum transmission power supported by the first user equipment is Pue_max. Expressed in another way, the offset value is a decrement value of the first power of each PRB based on the maximum transmission power supported by the first user equipment, eg Poffset. For each PRB, the base station obtains the first power of each PRB by using Pue_max-Poffset.

  Optionally, but in another embodiment, where one or more first PRBs are one PRB, used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs The maximum transmission power to be transmitted is a transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, if the one or more first PRBs are two or more PRBs, to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The maximum transmit power to be used is determined by the base station based on at least one transmit power candidate used to transmit the first signal from the first user equipment in one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first signal from the first user apparatus The minimum power among at least one transmission power candidate used for transmission in one or more first PRBs.

  So far, the signal transmission method according to the embodiment of the present invention seen from the side of the first user equipment will be described in detail with reference to FIGS. 1 and 2 and the embodiment of the present invention seen from the side of the base station The signal transmission method according to has been described with reference to FIG.

  In the following, embodiments of the invention will be described in more detail with reference to specific examples. The examples of FIGS. 1 to 3 are merely for the purpose of facilitating the understanding of the embodiments of the present invention by those skilled in the art, and the exemplary embodiments of the present invention are illustrated. It should be noted that it is not meant to be limited to values, or specific scenarios. Obviously, equivalent modifications or variations can be made based on the examples provided in FIGS. 1 to 3 by those skilled in the art, such variations or modifications , Are intended to be included within the scope of embodiments of the present invention.

  Hereinafter, a signal transmission method according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5. 4 and 5 are examples of FIGS. 1 to 3, the signal of FIG. 4 is a discovery signal, and FIG. 4 is a power control parameter supplied from the base station to the transmission power of the discovery signal by the user apparatus. It shows an example of making decisions based on Specifically, as shown in FIG.

  Step 410. The user device determines the position of one or more first PRBs to be used to transmit the discovery signal.

  In particular, the user equipment can determine one or more first PRBs to be used to transmit the discovery signal based on the scheduling information of the base station, or the user equipment is further in resource utilization state In response, one or more first PRBs to be utilized to transmit the discovery signal may be determined, or one or more first PRBs to be utilized to transmit the discovery signal based on presets. Can be further determined, and this configuration is not limited by the embodiments of the present invention. The one or more first PRBs may be one PRB or may be a plurality of PRBs.

  Step 420. The user apparatus receives power control parameter information supplied from a base station.

Specifically, the base station determines a message based on the location of the PRB used to transmit the discovery signal and sends the message to the user equipment. The user device receives the message and obtains power control parameter information from the message. For example, the power control parameter is at least one of _{PO_discovery} (j), f (j), and α (j), where α (j) ∈ [0, 1] represents the discovery signal. P 0 _{_Discovery} (j) is the path loss correction factor set by the system to transmit in PRB (j), with the target received power threshold set by the system to receive the discovery signal in (j) PRB And f (j) is a power control parameter and is used to control the power increase value used to transmit a signal from the user equipment in the (j) PRB.

  Step 430. The user apparatus determines the maximum transmission power based on the power control parameter information.

Specifically, if the one or more first PRBs are one PRB, and the transmission power of the discovery signal is determined based only on the power control parameter information, the transmission power is:
P _discovery (j) = ( _{PO_discovery} (j) + α (j) PL + f (j)) [dBm]
_{Where PO_discovery} (j) is the maximum transmit power used to transmit the discovery signal from the UE in the (j) PRB, PL is the path loss from the base station to the UE, and PL = (Transmission power set by the system to transmit the reference signal-received power of the reference signal detected by the UE) holds.

If the one or more first PRBs are a plurality of PRBs, and the transmission power of the discovery signal is determined based only on, for example, the power control parameter, the one or more first PRBs may (J + 1) PRB, and the transmission power candidate is the following formula:
P _discovery (j) = ( _{PO_discovery} (j) + α (j) PL + f (j)) [dBm]
_Where P _discovery (j) is a transmit power candidate used to transmit a discovery signal from the UE in (j) PRB, PL is a path loss from the serving base station to the UE, and this path loss Is calculated by the UE, and PL = (transmission power set by the system to transmit the reference signal)-(reception power of the reference signal detected by the UE).

The transmission power candidate P _discovery (j + 1) is acquired in the same manner. The user device can transmit the discovery signal at the (j) PRB and the (j + 1) PRB by using a power less than or equal to P _discovery (j), or the discovery signal may be transmitted to the (j) PRB and j + 1) PRB can be transmitted by using a power less than or equal to P _discovery (j + 1), or the discovery signal can be transmitted by (j) PRB and (j + 1) PRB,

It can be transmitted by using the following power, or the discovery signal in the (j) PRB and the (j + 1) PRB:

It can be transmitted by using the following power, or the discovery signal in the (j) PRB and the (j + 1) PRB:

It can be transmitted by using the following power, or the discovery signal in the (j) PRB and the (j + 1) PRB:

It can be transmitted by using the following powers, where

as well as

Is a natural number (linear number) corresponding to P _discovery (j) and P _discovery (j + 1), respectively.

  The one or more first PRBs are one PRB and both the maximum transmit power that can be supported by the UE and the maximum transmit power set by the system to transmit the discovery signal in the (j) PRB If taken into account, the maximum transmit power used to transmit the signal is derived based on the following equation:

_Where P UE — _max is the maximum transmit power that can be supported by the UE, and P _{C MAX} (j) is the maximum transmit power configured by the system to transmit the discovery signal in the (j) PRB .

_Stated differently, the user equipment transmits the discovery signal in PRB with the minimum value among P _{UE — max} , P _{C MAX} (j), and P _{O — discovery} (j) + α (j) · PL + f (j). Select as the maximum power used.

  The maximum transmit power that one or more first PRBs are multiple PRBs and that can be supported by the UE, and the maximum transmit power set by the system to transmit the discovery signal in the (j) PRB If taken into account, the transmit power candidate used to transmit the signal is derived based on the following equation:

_Stated differently, the user equipment transmits the discovery signal in PRB with the minimum value among P _{UE — max} , P _{C MAX} (j), and P _{O — discovery} (j) + α (j) · PL + f (j). Select as a transmit power candidate to be used.

  The user apparatus may determine the transmission power used to transmit the discovery signal in the plurality of PRBs based on the plurality of transmission power candidates corresponding to the plurality of RPBs. For example, the minimum value or the average value of the plurality of transmission power candidates is used as the maximum transmission power used to transmit the discovery signal in each PRB of the plurality of RPBs.

  Step 440. The user device transmits a discovery signal.

  Specifically, the user apparatus transmits a discovery signal by using a power less than or equal to the maximum transmission power based on the maximum transmission power.

  In the conventional inter-device short distance communication service (Device-to-Device Proximity Service, abbreviated as “D2D ProSe”), when transmitting a signal, the signal is frequency division multiplexed with the uplink signal transmitted from the same UE. It is multiplexed by the scheme. Since the subframe format of the signal transmitted by D2D is different from the subframe format of the uplink signal transmitted from the same UE, when receiving the D2D signal, the user apparatus may receive in-carrier generated by the uplink signal. There is a possibility of interference. When transmitting the discovery signal, the conventional UE transmits the discovery signal using the maximum power, and the power used to transmit the discovery signal may be adjusted based on the resource block position As a result, the transmission quality at the time of transmitting the uplink control signal from the UE to the base station is degraded, which further affects the overall system performance. However, in embodiments of the present invention, the transmit power is determined based on the resource block position used to transmit the discovery signal, and the transmit power can be adjusted accordingly to control signals. System performance can be improved by reducing the impact.

  FIG. 5 shows an example where the signal is a signal from the user equipment to the base station, and the user equipment determines the transmission power of the signal based on the power control parameters supplied from the base station. Specifically, as shown in FIG.

  Step 510. The user device comprises determining the position of one or more first PRBs to be used to transmit the signal.

  In particular, the signal from the user equipment to the base station may be a Physical Uplink Control Channel (PUCCH) signal from the user equipment to the base station, or a physical uplink shared channel from the user equipment to the base station (PUSCH ) Can be a signal. The user equipment may determine the position of one or more first PRBs used to transmit the signal based on the scheduling information of the base station. The base station may further determine one or more first PRBs to be used to transmit the signal based on the resource utilization status received from the user apparatus, or the signal from the user apparatus based on the preset. One or more first PRBs to be utilized to transmit may be determined, and this configuration is not limited by the embodiments of the present invention. The one or more first PRBs may be one PRB or a plurality of PRBs.

  Step 520. The user apparatus receives power control parameter information transmitted from the base station.

Specifically, the base station determines a message based on the position of the PRB used to transmit the signal and sends the message to the user equipment. The user apparatus receives the message and obtains power control parameter information from the message. When the signal is, for example, a PUSCH signal, the power control parameter is at least one of _{PO_PUSCH} (j), f (j), and α (j), where _{PO_PUSCH} (j) is A target receive power threshold set by the system to receive the signal at the (j) th PRB, f (j) is a signal power adjustment amount, and transmit the signal from the UE at the (j) th PRB Is used to control the power increment value used for and the α (j) ε [0,1] is the path loss correction factor set by the system to transmit the signal in the (j) PRB is there. When the signal is a PUCCH signal, the power control parameter is at least one of _{PO_PUCCH} (j) and g (j), where _{PO_PUCCH} (j) receives the signal at the (j) PRB Received power threshold set by the system to do the gating, and g (j) is the signal power adjustment amount, and the power increase value used to transmit the signal from the UE in the (j) PRB Used to control the

  Step 530. The base station determines the maximum transmission power based on the power control parameter.

Specifically, if one or more of the first PRBs is one PRB and the signal is a PUSCH signal, then the transmit power is given by the following equation:
It is derived based on P _PUSCH (j) = ( _{PO_PUSCH} (j) + α (j) · PL + ΔTF + f (j)) [dBm],
_Where P _PUSCH (j) is the maximum transmit power used to transmit the discovery signal from the UE in (j) PRB, and P _{O — PUSCH} (j) is the signal received in (j) PRB Target reception power threshold set by the system in order to perform, PL is a path loss from the serving base station to the UE, this path loss is calculated by the UE, ΔTF is a power adjustment amount, and transmission It varies with the rate, and f (j) is a signal power adjustment amount and is used to control the power increase value used to transmit the signal from the UE in the (j) PRB.

Alternatively, if one or more of the first PRBs are a plurality of PRBs and the signal is a PUSCH signal, then the transmit power is given by the following equation:
It is determined based on P _PUSCH (j) = ( ₁₀ log ₁₀ (M _PUSCH ) + _{PO_PUSCH} (j) + α (j) · PL + ΔTF + f (j)) [dBm]
Where M _PUSCH is the number of one or more first PRBs.

If one or more first PRBs are one PRB and the signal is a PUCCH signal, the transmit power candidate has the following formula:
P _PUCCH (j) = ( _{PO_PUCCH} (j) + PLc + h (n _CQI , n _HARQ , n _SR ) + _{ΔF_PUCCH} (F) + Δ _TxD (F ′) + g (i)) [dBm]
_Where P _{O — PUCCH} (j) is the target receive power threshold set by the system to receive the signal at the (j) PRB, PL is the path loss between the base station and the UE, h (N _CQI , n _HARQ , n _SR ) is a power adjustment value associated with the PUCCH format, where n _CQI is the number of bits included in channel quality information, and n _SR is the corresponding scheduling request information And n _HARQ is the number of bits included in the HARQ information, and Δ F — PUCCH (F) is a power adjustment amount determined by using the PUCCH format, Δ _{Tx D} (F ′) Is the amount of power adjustment determined by using uplink transmit diversity.

  Step 540. The user device transmits a signal.

  Specifically, the user apparatus transmits a signal based on the maximum transmission power by using a power higher than the maximum transmission power.

  In D2D (inter-device communication) technology, the subframe format of the signal transmitted by D2D is different from the subframe format of the uplink signal transmitted from the same UE, so when receiving the uplink signal, the base The station may significantly reduce the transmission quality of the control signal by being subject to in-carrier interference caused by the D2D signal. In the embodiments of the present invention, the power is determined based on the position of the PRB used to transmit the control signal, and the transmission power of the control signal can be adjusted according to the situation, thus the network performance It can be improved.

  The examples of FIGS. 4 and 5 are given to enable those skilled in the art to better understand the embodiments of the present invention and to limit the scope of the embodiments of the present invention. Note that it is not listed. Obviously, equivalent modifications or alterations can be made based on the examples of FIGS. 4 and 5 by those skilled in the art. Shall be included in the scope of the embodiments of the invention.

  It should be understood that the order of the processes listed so far does not imply an execution order. The order of execution of the processes should be determined according to the function and internal logic of the processes, and should not be construed as limiting the execution processes in the various embodiments of the present invention.

  So far, the signal transmission method according to the embodiments of the present invention has been described in detail with reference to FIGS. In the following, the user equipment according to one embodiment of the present invention will be described in detail with reference to FIGS. 6 and 7, and for the base station according to one embodiment of the present invention, FIG. And will be described in detail with reference to FIG.

  FIG. 6 is a schematic block diagram of a user equipment according to one embodiment of the present invention. The user device 600 shown in FIG. 6 includes a first determination unit 610, a second determination unit 620, and a transmission unit 630.

  In particular, the first determining unit 610 is configured to determine one or more first physical resource blocks (PRBs) to be used to transmit the first signal, and the second determining unit 620 is configured to: The transmission unit 630 is configured to determine a transmission power used to transmit the first signal from the user apparatus 600 in the one or more first PRBs based on the positions of the one or more first PRBs. The signal is configured to be transmitted by using transmission power in one or more first PRBs.

  The user equipment provided in the embodiments of the present invention adjusts a specific transmission power to a specific time-frequency resource by adjusting the transmission power of the signal based on the position of the PRB used to transmit the signal. The performance of network communication can be improved by being able to set at the position based on the performance requirement of the network communication and adjusting the transmission power of the signal according to the situation.

It should be understood that the transmit power is the power in the actual application and can be less than or equal to the maximum transmit power.

  According to an embodiment of the present invention, the transmission power is a power less than or equal to the maximum transmission power used to transmit the first signal from the user equipment in each of the one or more first PRBs, and The maximum transmission power used to transmit one signal in each PRB of one or more first PRBs is for the user equipment to transmit the first signal from the user equipment in each PRB of one or more first PRBs. The transmit power candidate determined based on the transmit power candidate to be used and used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one or more selected by the user apparatus. It is determined based on the position of the first PRB and the power information supplied from the base station.

  Optionally, as another embodiment, the power information includes power setting information of one or more first PRBs and power control parameter information of one or more first PRBs, and one of the first signals from the user apparatus is The transmit power candidate used to transmit in each PRB of the one or more first PRBs is used by the user equipment to transmit the first signal from the user equipment in each PRB of one or more first PRBs. The power is determined based on one power and a second power used to transmit the first signal from the user equipment in each of one or more first PRBs, wherein the first power is one by the user equipment. The second power is determined by the user equipment based on the positions of one or more first PRBs and the power setting information of the one or more first PRBs, the position of the one or more first PRBs, and the one or more first PRBs. It is determined based on the power control parameter information of

  As another configuration, and as another embodiment, the power information includes power control parameter information of the first user equipment and power setting information of one or more first PRBs, and one or more of the first signals from the user equipment The transmission power candidate used to transmit in each PRB of the first PRB is determined by the user apparatus based on the first power and the second power, in which case the first power is one by the user apparatus. The second power is determined by the user apparatus based on the position of the first PRB and the power setting information of the one or more first PRBs, the position of the one or more first PRBs, and the power control parameter information of the user apparatus It is determined based on

  Optionally, as another embodiment, the power information includes power setting information of the first user equipment and power control parameter information of one or more first PRBs, and one or more of the first signals from the user equipment The transmission power candidate used to transmit in each PRB of the first PRB is determined by the user apparatus based on the first power and the second power, in which case the first power is one by the user apparatus. The second power is determined by the user apparatus based on the position of the first PRB and the power setting information of the user apparatus, the position of one or more first PRBs, and the power control parameter information of the one or more first PRBs. It is determined based on

  Optionally, as another embodiment, the transmission power candidate used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one of the first power and the second power. It is the smaller power.

  Optionally, as another embodiment, the transmit power candidate used to transmit the first signal from the user equipment in each PRB of one or more first PRBs is the maximum transmission power supported by the user equipment, The minimum power among the first power and the second power.

  Optionally, as another embodiment, the power information includes power setting information of one or more first PRBs, and for transmitting a first signal from the user equipment in each PRB of one or more first PRBs The transmission power candidate to be used is the first power, in which case the first power is determined by the user equipment based on the positions of the one or more first PRBs and the power setting information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is the maximum transmission power supported by the user apparatus and the smaller of the first powers. In this case, the first power is determined by the user equipment based on the positions of one or more first PRBs and the power setting information of one or more first PRBs.

  Optionally, as another embodiment, the power information includes power control parameter information of one or more first PRBs, and for transmitting the first signal from the user equipment in each PRB of one or more first PRBs The transmission power candidate used for the second power is a second power, where the second power is determined by the user equipment based on the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs. The transmit power candidate determined or used to transmit the first signal from the user apparatus in each PRB of the one or more first PRBs is the maximum transmit power supported by the user apparatus, and the second power. In this case, the second power is determined by the user equipment based on the positions of the one or more first PRBs and the power control parameter information of the one or more first PRBs.

Optionally, as another embodiment, the power control parameter information includes at least one of P _o (j), f (j), and α (j), where j is PRB Position number, P _o (j) is the target received power threshold set by the system to receive the discovery signal in the (j) PRB, f (j) is the power control parameter, and the user (J) is used to control the power increment value used to transmit the signal in the (j) PRB, and α (j) ∈ [0, 1] transmit the signal in the (j) PRB Path loss correction coefficient set by the system to

In particular, the second power is, according to the user equipment, the following formula:
It is derived based on P (j) = (P _o (j) + α (j) · PL + f (j)) [dBm],
Where P (j) is the transmit power used to transmit the signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment.

  Optionally, as another embodiment, the power setting information includes power corresponding to each PRB of the one or more first PRBs, and the first power is a position of the one or more first PRBs by the user equipment, And the power corresponding to each PRB of the one or more first PRBs.

  Optionally, as another embodiment, the power setting information includes reference transmission power and an offset value corresponding to each PRB of one or more first PRBs, and the first power is one or more by the user equipment. Of the first PRB, the reference transmission power, and an offset value corresponding to each PRB of the one or more first PRBs.

  Optionally, as another embodiment, the power setting information includes an offset value corresponding to each PRB of the one or more first PRBs, and the first power is a position of the one or more first PRBs by the user equipment. The maximum transmission power supported by the user equipment and an offset value corresponding to each PRB of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power is a power less than or equal to the maximum transmission power used to transmit the first signal in each PRB of one or more first PRBs, and the user apparatus The maximum transmission power used to transmit one signal in each PRB of one or more first PRBs is for the user equipment to transmit the first signal from the user equipment in each PRB of one or more first PRBs. The transmit power candidate determined based on the transmit power candidate to be used and used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is preset information by the user apparatus. In this case, the preset information represents transmission power candidates corresponding to each PRB of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power is determined by the user equipment based on the position of one or more first PRBs and the power information supplied from the base station, in which case the power information is The transmission power used to transmit the first signal from each user apparatus in each PRB of one or more first PRBs.

  Optionally, but in another embodiment, if one or more first PRBs are one PRB, used to transmit the first signal from the user equipment in each PRB of one or more first PRBs The maximum transmission power is a transmission power candidate used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, when one or more first PRBs are two or more PRBs, used to transmit the first signal from the user equipment in each PRB of one or more first PRBs The maximum transmission power is determined by the user equipment based on at least one transmission power candidate used to transmit the first signal from the user equipment in one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one or more first signals from the user apparatus. This is the minimum power among at least one transmission power candidate used for transmission in the first PRB.

  Optionally, in another embodiment, the first signal is a device-to-device (D2D) discovery signal, a direct D2D communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and from the user equipment This is any one of physical uplink shared channel PUSCH signals to the base station.

  It should be noted that the user equipment shown in FIG. 6 can perform the processes implemented by the user equipment in the form of the method of FIGS. For other functions and operations of the user device 600, reference may be made to the process associated with the user device in the method form of FIGS. Details are not described here again to avoid repetition.

  FIG. 7 is a schematic block diagram of a user equipment according to another embodiment of the present invention. The user device 700 shown in FIG. 7 includes a processor 710, a memory 720, a bus system 730, and a transceiver 740. Processor 710, memory 720, and transceiver 740 are connected using bus system 730.

  In particular, the processor 710 invokes the code stored in the memory 720 by using the bus system 730 to transmit one or more first physical resource blocks (PRBs) used to transmit the first signal. ) And is configured to determine the transmission power used to transmit the first signal from the user device 700 in the one or more first PRBs based on the position of the one or more first PRBs. The transceiver 740 is configured to transmit the first signal in one or more first PRBs by using the determined transmission power.

  The user equipment provided in the embodiments of the present invention can adjust the transmission power of the signal based on the position of the PRB used to transmit the signal, so that the specific transmission power can be at a specific time. The frequency resource position can be set based on the performance requirements of the network communication, and by being able to adjust the transmission power of the signal according to the situation, the performance of the network communication can be improved.

  The methods disclosed in the previous embodiments of the present invention can be applied to or executed by processor 710. Processor 710 can be an integrated circuit chip and can process signals. In the execution process, each step of the aforementioned method may be performed by hardware integrated logic within processor 710 or may be performed by using software configured instructions in processor 710. The processor 710 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or another. It can be a programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Processor 710 may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor, or it may be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention can be performed directly by a hardware decoding processor or can be performed by using a combination of hardware and software modules in the decoding processor. The software module is in the prior art such as random access memory (RAM), flash memory, read only memory (ROM), programmable read only memory, electrically erasable programmable memory, or registers. It can be stored in a fully developed storage medium. A storage medium is stored in the memory 720. The processor 710 reads the information from the memory 720 and performs the steps of the above-described method together with the hardware of the processor 710. In addition to the data bus, bus system 730 may further include a power bus, a control bus, a status signal bus, and the like. However, for the sake of clarity, the different types of busses are collectively shown in this figure as bus system 730.

It should be understood that the transmit power is the power in the actual application and can be less than or equal to the maximum transmit power.

  According to an embodiment of the present invention, the transmission power is a power less than or equal to the maximum transmission power used to transmit the first signal from the user equipment in each of the one or more first PRBs, and The maximum transmission power used to transmit one signal in each PRB of one or more first PRBs is for the user equipment to transmit the first signal from the user equipment in each PRB of one or more first PRBs. The transmit power candidate determined based on the transmit power candidate to be used and used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one or more selected by the user apparatus. It is determined based on the position of the first PRB and the power information supplied from the base station.

  Optionally, as another embodiment, the power information includes power setting information of one or more first PRBs and power control parameter information of one or more first PRBs, and one of the first signals from the user apparatus The transmission power candidate used to transmit in each PRB of the above first PRB is used by the user apparatus to transmit the first signal from the user apparatus in each PRB of one or more first PRBs. The power is determined based on power and a second power used to transmit the first signal from the user equipment in each of one or more first PRBs, wherein the first power is one by the user equipment. The second power is determined by the user equipment based on the position of the first PRB and the power setting information of the one or more first PRBs, the position of the one or more first PRBs, and the one or more first PRBs. It is determined based on power control parameter information.

  As another configuration, and as another embodiment, the power information includes power control parameter information of the first user equipment and power setting information of one or more first PRBs, and one or more of the first signals from the user equipment The transmission power candidate used to transmit in each PRB of the first PRB is determined by the user apparatus based on the first power and the second power, in which case the first power is one by the user apparatus. The second power is determined by the user apparatus based on the position of the first PRB and the power setting information of the one or more first PRBs, the position of the one or more first PRBs, and the power control parameter information of the user apparatus It is determined based on

  Optionally, the power information includes power setting information of a first user equipment and power control parameter information of one or more first PRBs, and the power information includes one or more first signals from the user equipment. The transmission power candidate used to transmit in each PRB of the first PRB is determined by the user apparatus based on the first power and the second power, in which case the first power is one or more by the user apparatus The second power is determined by the user equipment to the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs according to the position of the first PRB and the power setting information of the user equipment. It is decided based on.

  Optionally, as another embodiment, the transmission power candidate used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one of the first power and the second power. It is the smaller power.

  Optionally, as another embodiment, the transmit power candidate used to transmit the first signal from the user equipment in each PRB of one or more first PRBs is the maximum transmission power supported by the user equipment, The minimum power among the first power and the second power.

  Optionally, as another embodiment, the power information includes power setting information of one or more first PRBs and is used to transmit the first signal from the user equipment in each PRB of one or more first PRBs The transmission power candidate to be transmitted is the first power, and in this case, the first power is determined by the user apparatus based on the positions of the one or more first PRBs and the power setting information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from each user apparatus or each PRB of one or more first PRBs is the maximum transmission power supported by the user apparatus and the smaller one of the first powers. In this case, the first power is determined by the user equipment based on the positions of the one or more first PRBs and the power setting information of the one or more first PRBs.

  Optionally, as another embodiment, the power information includes power control parameter information of one or more first PRBs, and for transmitting a first signal from the user equipment in each PRB of one or more first PRBs The transmission power candidate to be used is the second power, in which case the second power is determined by the user equipment based on the positions of one or more first PRBs and the power control parameter information of one or more first PRBs. Power candidate used for transmitting the first signal from the user apparatus in each PRB of one or more first PRBs is the maximum transmission power supported by the user apparatus and the second power The smaller power, in which case the second power is determined by the user equipment based on the position of the one or more first PRBs and the power control parameter information of the one or more first PRBs.

Optionally, as another embodiment, the power control parameter information includes at least one of P _o (j), f (j), and α (j), where j is PRB P _o (j) is the target receive power threshold set by the system to receive the discovery signal at the (j) PRB, f (j) is the power control parameter, and p _o (j) (J) is used to control the power increment value used to transmit the signal in the (j) PRB from the user equipment, and α (j) ∈ [0, 1] is the signal in the (j) PRB It is a path loss correction factor set by the system to transmit.

In particular, the second power is, according to the user equipment, the following formula:
It is derived based on P (j) = (P _o (j) + α (j) · PL + f (j)) [dBm],
Where P (j) is the maximum transmission power used to transmit a signal from the user equipment in the (j) PRB, and PL is the path loss between the base station and the user equipment.

  Optionally, as another embodiment, the power setting information includes power corresponding to each PRB of the one or more first PRBs, and the first power is a position of the one or more first PRBs by the user equipment, And the power corresponding to each PRB of the one or more first PRBs.

  Optionally, as another embodiment, the power setting information includes reference transmission power and an offset value corresponding to each PRB of one or more first PRBs, and the first power is one or more by the user equipment. Of the first PRB, the reference transmission power, and an offset value corresponding to each PRB of the one or more first PRBs.

  Optionally, as another embodiment, the power setting information includes an offset value corresponding to each PRB of the one or more first PRBs, and the first power is a position of the one or more first PRBs by the user equipment. The maximum transmission power supported by the user equipment and an offset value corresponding to each PRB of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power is a power less than or equal to the maximum transmission power used to transmit the first signal in each PRB of one or more first PRBs, and the user apparatus The maximum transmission power used to transmit one signal in each PRB of one or more first PRBs is for the user equipment to transmit the first signal from the user equipment in each PRB of one or more first PRBs. The transmit power candidate determined based on the transmit power candidate to be used and used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is preset information by the user apparatus. In this case, the preset information represents transmission power candidates corresponding to each PRB of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power is determined by the user equipment based on the position of one or more first PRBs and the power information supplied from the base station, in which case the power information is The transmission power used to transmit the first signal from each user apparatus in each PRB of one or more first PRBs.

  Optionally, but in another embodiment, if one or more first PRBs are one PRB, used to transmit the first signal from the user equipment in each PRB of one or more first PRBs The maximum transmission power is a transmission power candidate used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, when one or more first PRBs are two or more PRBs, used to transmit the first signal from the user equipment in each PRB of one or more first PRBs The maximum transmission power is determined by the user equipment based on at least one transmission power candidate used to transmit the first signal from the user equipment in one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the user apparatus in each PRB of one or more first PRBs is one or more first signals from the user apparatus. This is the minimum power among at least one transmission power candidate used for transmission in the first PRB.

  Optionally, in another embodiment, the first signal is a device-to-device (D2D) discovery signal, a direct D2D communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and from the user equipment This is any one of physical uplink shared channel PUSCH signals to the base station.

  It should be noted that the user equipment shown in FIG. 7 can perform the processes implemented by the user equipment in the form of the method of FIGS. For other functions and operations of the user device 700, reference may be made to the process associated with the user device in the method form of FIGS. Details are not described here again to avoid repetition.

  FIG. 8 is a schematic block diagram of a base station according to one embodiment of the present invention. The base station 800 shown in FIG. 8 includes a first determination unit 810 and a transmission unit 820.

  In particular, the first determination unit 810 is configured to determine the power information based on the position of the one or more first PRBs, in this case by instructing the first user equipment using the power information The transmission unit 820 determines the transmission power to be used to transmit the first signal from the first user equipment in the one or more first PRBs based on the power information, and the transmission unit 820 transmits the power information to the first user equipment Configured to

  Therefore, the base station provided in the embodiment of the present invention can improve network performance by being able to adjust the transmission power of the signal according to the situation based on the position of the PRB.

  Optionally, as another embodiment, the power information includes at least one of power setting information of one or more first PRBs and power control parameter information of one or more first PRBs.

  As another configuration, and as another embodiment, as shown in FIG. 9, the power information includes the transmission power used to transmit the first signal from the first user apparatus in one or more first PRBs. The base station 800 includes a first determination unit 810, a transmission unit 820, a second determination unit 830, and a third determination unit 840. The first determination unit 810 functions the same as the first determination unit 810 of FIG. 8 and the transmission unit 820 functions the same as the transmission unit 820 of FIG. Details are not described here again to avoid repetition. The second determination unit 830 is configured to transmit the first signal from the first user equipment based on at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. It is configured to determine transmit power candidates to be used for transmission in one or more first PRBs. The third determination unit 840 may select one or more of the first signals from the first user equipment based on the transmit power candidate used to transmit the first signal from the first user equipment in the one or more first PRBs. It is configured to determine the maximum transmit power used to transmit in each PRB of the first PRB. It should be noted that the provision of the second determination unit 830 and the third determination unit 840 is optional.

  Optionally, in another embodiment, the base station transmits to the first user equipment the transmit power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs. A first power used to transmit the first signal from each of the one or more first PRBs, and a first user device to transmit the first signal from each of the one or more first PRBs It is determined based on the second power to be used, where the first power is determined by the base station 800 based on the power setting information of the one or more first PRBs, and the second power is determined by the base station 800. , Determined based on power control parameter information of one or more first PRBs.

  Specifically, as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is one of the first power and the second power. Power of the smaller one.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user device in each PRB of one or more first PRBs is supported by the first user device Minimum power among the maximum transmission power, the first power, and the second power.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first power, in this case , The first power is determined by the base station 800 based on power setting information of one or more first PRBs, or transmits a first signal from the first user equipment in each PRB of one or more first PRBs. The transmission power candidate used for the transmission is the maximum transmission power supported by the first user equipment and the smaller of the first power, in which case the first power is 1 by the base station 800. It is determined based on power setting information of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the second power, in this case , The second power is determined by the base station 800 based on power control parameter information of the one or more first PRBs, or the first user equipment transmits the first signal in each PRB of the one or more first PRBs The transmit power candidate used for the transmission is the maximum transmit power supported by the first user equipment and the smaller of the second powers, in which case the second power is transmitted by the base station 800 It is determined based on power control parameter information of one or more first PRBs.

Optionally, as another embodiment, the power control parameter information includes at least one of P _o (j), f (j), and α (j), where j is PRB Position number, P _o (j) is the target receive power threshold set by the system to receive the discovery signal in the (j) PRB, and α (j) ∈ [0, 1] is the signal Is a path loss correction factor set by the system to transmit in the (j) PRB, and f (j) is a power control parameter, and to transmit a signal from the user equipment in the (j) PRB Used to control the power increment value used for

  Optionally, in another embodiment, the power setting information corresponds to the following items: power corresponding to each PRB of one or more first PRBs, reference transmission power, and each PRB of one or more first PRBs One item of an offset value and an offset value corresponding to each PRB of one or more first PRBs is included.

  Optionally, but in another embodiment, where one or more first PRBs are one PRB, used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs The maximum transmission power to be transmitted is a transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, if the one or more first PRBs are two or more PRBs, to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The maximum transmission power to be used is determined by the base station 800 based on at least one transmission power candidate used to transmit the first signal from the first user equipment in one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first signal from the first user apparatus The minimum power among at least one transmission power candidate used for transmission in one or more first PRBs.

  Optionally, in another embodiment, the first signal is a device-to-device (D2D) discovery signal, a direct D2D communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and from the user equipment This is any one of physical uplink shared channel PUSCH signals to the base station.

  It should be noted that the base stations shown in FIGS. 8 and 9 can execute the processes implemented by the base station in the method form of FIGS. For other functions and operations of the base station 800, reference may be made to the process associated with the base station in the method form of FIGS. Details are not described here again to avoid repetition.

  FIG. 10 is a schematic block diagram of a base station according to another embodiment of the present invention. A base station 1000 shown in FIG. 10 includes a processor 1010, a memory 1020, a bus system 1030, and a transceiver 1040. Processor 1010, memory 1020, and transceiver 1040 are connected using bus system 1030.

  In particular, processor 1010 is configured to invoke code stored in memory 1020 by using bus system 1030 to determine power information based on the location of one or more first PRBs. In this case, the transmission power used to transmit the first signal from the first user apparatus in one or more first PRBs based on the power information by instructing the first user apparatus using the power information And transceiver 1040 is configured to transmit power information to the first user device.

  Therefore, the base station provided in the embodiment of the present invention can improve network performance by being able to adjust the transmission power of the signal according to the situation based on the position of the PRB.

  The methods disclosed in the above embodiments of the present invention can be applied to or executed by the processor 1010. Processor 1010 can be an integrated circuit chip and can process signals. In the execution process, each step of the aforementioned method may be performed by hardware integrated logic within processor 1010, or may be performed using software configured instructions in processor 1010. The aforementioned processor 1010 may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or another. It can be a programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. A processor 1010 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor, or it may be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention can be performed directly by a hardware decoding processor or can be performed by using a combination of hardware and software modules in the decoding processor. The software module is in the prior art such as random access memory (RAM), flash memory, read only memory (ROM), programmable read only memory, electrically erasable programmable memory, or registers. It can be stored in a fully developed storage medium. A storage medium is stored in the memory 1020. The processor 1010 reads the information from the memory 1020 and performs the steps of the aforementioned method together with the hardware of the processor 1010. In addition to the data bus, bus system 1030 can further include a power bus, a control bus, a status signal bus, and the like. However, for the sake of clarity, the different types of busses are collectively shown in this figure as bus system 1030.

  Optionally, as another embodiment, the power information includes at least one of power setting information of one or more first PRBs and power control parameter information of one or more first PRBs.

  As another configuration, and as another embodiment, the power information includes transmission power used to transmit the first signal from the first user apparatus in one or more first PRBs, and the processor 1010 is one The first user apparatus transmits a first signal in one or more first PRBs based on at least one of the power setting information of the first PRB and the power control parameter information of the one or more first PRBs. The processor 1010 is further configured to determine a transmit power candidate to be used for the transmission, based on the transmit power candidate used to transmit the first signal from the first user device in the one or more first PRBs. Then, it is further configured to determine the maximum transmission power used to transmit the first signal from the first user equipment in each of the one or more first PRBs.

  Optionally, as another embodiment, the base station 1000 can transmit the first user user the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs. A first power used to transmit a first signal from the device on each PRB of the one or more first PRBs, and a first user equipment to transmit the first signal on each PRB of the one or more first PRBs The first power is determined by the base station 1000 based on the power setting information of the one or more first PRBs, and the second power is determined by the base station 1000. , Based on the power control parameter information of the one or more first PRBs.

  Specifically, as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is one of the first power and the second power. Power of the smaller one.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user device in each PRB of one or more first PRBs is supported by the first user device Minimum power among the maximum transmission power, the first power, and the second power.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first power, in this case , The first power is determined by the base station 1000 based on the power setting information of the one or more first PRBs, or the first user apparatus transmits the first signal in each of the one or more first PRBs. The transmission power candidate used for the transmission is the maximum transmission power supported by the first user equipment and the smaller of the first power, in which case the first power is 1 by the base station 1000. It is determined based on power setting information of one or more first PRBs.

  As another configuration, and as another embodiment, the transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the second power, in this case , The second power is determined by the base station 1000 based on the power control parameter information of the one or more first PRBs, or the first user apparatus transmits the first signal in each PRB of the one or more first PRBs. The transmission power candidate used for the transmission is the maximum transmission power supported by the first user equipment, and the smaller of the first powers, in which case the second power is transmitted by the base station 1000 It is determined based on power control parameter information of one or more first PRBs.

  As another configuration, and as another embodiment, the power control parameter information includes at least one of PO (j), f (j), and α (j), where j is PRB The position number, PO (j) is the target receive power threshold set by the system to receive the discovery signal at PRB (j), and α (j) ∈ [0, 1] is the signal PRB (J) is a path loss correction factor set by the system to transmit, and f (j) is a power control parameter and is used to transmit a signal from the user equipment in PRB (j) Used to control the power increase value.

  Optionally, in another embodiment, the power setting information corresponds to the following items: power corresponding to each PRB of one or more first PRBs, reference transmission power, and each PRB of one or more first PRBs One item of an offset value and an offset value corresponding to each PRB of one or more first PRBs is included.

  Optionally, but in another embodiment, where one or more first PRBs are one PRB, used to transmit the first signal from the first user equipment in each PRB of one or more first PRBs The maximum transmission power to be transmitted is a transmission power candidate used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs.

  Optionally, as another embodiment, if the one or more first PRBs are two or more PRBs, to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs The maximum transmission power to be used is determined by the base station 1000 based on at least one transmission power candidate used to transmit the first signal from the first user equipment in one or more first PRBs.

  In detail, as another embodiment, the maximum transmission power used to transmit the first signal from the first user apparatus in each PRB of one or more first PRBs is the first signal from the first user apparatus The minimum power among at least one transmission power candidate used for transmission in one or more first PRBs.

  Optionally, in another embodiment, the first signal is a device-to-device (D2D) discovery signal, a direct D2D communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and from the user equipment This is any one of physical uplink shared channel PUSCH signals to the base station.

  It should be understood that the term "and / or" is used herein to refer only to an association that represents the object to be associated, and to indicate that three relationships may exist. For example, A and / or B can represent the following three cases: only A is present, both A and B are present, and only B is present. Further, the symbol "/" usually refers herein to the "or" relationship between the object to be associated and the object.

  It should be understood that the order of processes set forth above does not imply the order of execution in the various embodiments of the present invention. The order of execution of the processes should be determined according to the function and internal logic of the processes, and should not be construed as limiting the execution processes in the various embodiments of the present invention.

  Those skilled in the art, in combination with these examples described in the various embodiments disclosed herein, may unit and algorithmic steps by means of electronic hardware or of computer software and electronic hardware. It will be appreciated that it can be implemented in combination. Whether these functions are implemented in hardware or software depends on the particular application and design constraints of the technical solution. Those skilled in the art can perform the functions described for each particular application by using different methods, but this practice is considered to be outside the scope of the present invention. It does not.

  Those skilled in the art may refer to the corresponding processes in the foregoing method form for details of the operation processes of the aforementioned systems, devices and units for convenience and to ensure the simplicity of the description. With a clear understanding, I will not explain the details here again.

  It should be understood that in some embodiments provided in the present application, the disclosed system, apparatus and method can be implemented in other forms. For example, the described apparatus embodiments are merely exemplary. For example, unit division is merely logical function division, and may be another division in an actual embodiment. For example, multiple units or components may be combined or integrated into another system, or some functions may be ignored or not performed. Furthermore, the displayed or described interconnections or direct connections or communication connections may be realized via several interfaces. The indirect connection or indirect communication connection between the device and the unit or between the unit and the unit may be realized electronically, mechanically or otherwise.

  A unit described as a separate component may or may not be physically separate, and a component represented as a unit may be a physical unit It may or may not be a physical unit, may be arranged at one position, or may be distributed to a plurality of network units. Some or all of the units can be selected according to the actual need to achieve the purpose of the solution of the various embodiments.

  Furthermore, functional units in various embodiments of the present invention can be integrated into one processing unit, or each unit of units can be physically provided alone, or two or more Integrate the units into one unit.

  When these functions are implemented in the form of software functional units and are sold or used as discrete products, these functions can be stored in a computer readable storage medium. Based on such an understanding, the technical solution of the present invention basically, or a technical solution part contributing to the prior art, or a part of the technical solution is implemented in the form of a software product. Can. The software product is stored on a storage medium and directed to a computer device (the computer device can be a personal computer, a server or a network device) to describe these methods described in the various embodiments of the invention. And some instructions for performing all or part of the steps of The above-mentioned storage medium is a USB flash drive capable of storing program codes, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or Includes any medium, such as an optical disc.

  The foregoing description is merely directed to specific embodiments of the present invention and is not intended to limit the protection scope of the present invention. It is intended that those skilled in the art within the scope of protection of the present invention include all modifications or replacements that can easily be conceived so as to fall within the scope of disclosure of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of these claims.

600, 700, UE user equipment
610, 810 first determination unit
620, 830 second decision unit
630, 820 transmission units
710, 1010 processor
720, 1020 memory
730, 1030 bus system
740, 1040 transceivers
800, 1000 base stations
840 Third decision unit
Between D2D devices
PRB physical resource block
PUCCH physical uplink control channel
PUSCH physical uplink shared channel

Claims (28)

A signal transmission method,
Determining power information based on the position of one or more first PRBs by the base station, using the power information to instruct the first user equipment based on the power information; Determining a transmit power used to transmit a first signal from the first user equipment in the one or more first PRBs;
Transmitting the power information from the base station to the first user equipment;
Only including,
The power information may include the transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs, the method may include
The first user apparatus may receive the first user apparatus based on at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs by the base station. Determining a transmit power candidate to be used to transmit a signal in the one or more first PRBs;
The base station transmits the first signal from the first user equipment based on the transmit power candidate used to transmit the first signal from the first user equipment in the one or more first PRBs. Determining the maximum transmit power used to transmit on each PRB of the one or more first PRBs .   The method of claim 1, wherein the power information includes at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the first signal from the first user equipment by the base station. A first power used to transmit in each PRB of the one or more first PRBs, and for transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs Determined based on second power to be used, wherein the first power is determined by the base station based on the power setting information of the one or more first PRBs, and the second power is determined by the base station The method according to claim 1 , wherein the power control parameter information is determined based on the power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is a smaller one of the first power and the second power. The method of claim 3 , wherein the method is electrical power. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user equipment. The method according to claim 3 , wherein the minimum power among the first power and the second power. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is a first power, and the first power is transmitted by the base station , Determined based on the power setting information of the one or more first PRBs,
Or the transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is the maximum transmission power supported by the first user equipment. and a smaller power in the first power, the first power by the base station, wherein is determined based on one or more of said power setting information of the PRB, according to claim 1 Method. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is a second power, and the second power is transmitted by the base station , Determined based on the power control parameter information of the one or more first PRBs
Or the transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is the maximum transmission power supported by the first user equipment. and a smaller power in the second power, the second power, by the base station is determined based on the power control parameter information of said one or more first PRB, according to claim 1 the method of. The power control parameter information includes at least one of P _o (j), f (j), and α (j).
j is the position number of the PRB, P _o (j) is the target receive power threshold set by the system to receive the discovery signal in the (j) PRB, and α (j) ∈ [0, 1 ] Is the path loss correction factor set by the system to transmit the signal in the (j) th PRB, and f (j) is the power control parameter and the signal from the user equipment is (j) It is used to control the power increase value used for transmission PRB, the method according to any one of claims 1 to 7. The power setting information includes the following items:
Power corresponding to each PRB of the one or more first PRBs,
Reference transmission power, an offset value corresponding to each PRB of the one or more first PRBs, and the offset value corresponding to each PRB of the one or more first PRBs
Containing one item of the method according to any one of claims 1-8.   A signal transmission method,
  Determining power information based on the position of one or more first PRBs by the base station, using the power information to instruct the first user equipment based on the power information; Determining a transmit power used to transmit a first signal from the first user equipment in the one or more first PRBs;
  Transmitting the power information from the base station to the first user equipment;
Including
  The power information includes power control parameter information of the one or more first PRBs,
  The power control parameter information is P _O At least one of (j), f (j), and α (j), and
  j is the position number of the PRB, P _O (J) is the target receive power threshold set by the system to receive the discovery signal at the (j) PRB, and α (j) ∈ [0, 1] is the signal at the (j) PRB The path loss correction factor set by the system to transmit, and f (j) is a power control parameter, and the power increase used to transmit the signal from the user equipment in the (j) PRB The method used to control the value. The one or more first PRBs are one PRB, and the maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is The method according to any one of claims 1 to 10, which is a transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs. The one or more first PRBs are two or more PRBs,
The maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the base station to transmit the first signal from the first user equipment. at least one is determined based on the transmission power candidate a method according to any one of claims 1 to 11 which is used for transmission in the one or more first PRB.   The maximum transmission power used to transmit the first signal from the first user device in each of the one or more first PRBs is the one or more first signals from the first user device. The method according to claim 12, wherein the minimum power among the at least one transmission power candidate used for transmission in the first PRB of.   The first signal includes an inter-device D2D discovery signal, a D2D direct communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and a physical uplink shared channel PUSCH signal from the user equipment to the base station The method according to any one of claims 1 to 13, which is a signal of any one of them. A base station,
A first determination unit that determines power information based on a position of one or more first PRBs, wherein the first power unit is used to instruct the first user apparatus to use the power information to determine the power information based on the power information; Said first determining unit determining a transmission power used to transmit a first signal from one user equipment in said one or more first PRBs;
A transmitting unit for transmitting the power information to the first user device ;
The power information may include the transmission power used to transmit the first signal from the first user equipment in the one or more first PRBs, further the base station may:
The one first signal from the first user apparatus based on at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. A second determination unit that determines a transmission power candidate to be used for transmission in the first PRB above;
The one or more first signals are transmitted from the first user equipment based on the transmission power candidate used to transmit the first signal from the first user equipment in the one or more first PRBs. A third determination unit that determines the maximum transmission power used to transmit in each PRB of the first PRB .   The base station of claim 15, wherein the power information includes at least one of power setting information of the one or more first PRBs and power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the first signal from the first user equipment by the base station. A first power used to transmit in each PRB of the one or more first PRBs, and for transmitting the first signal from the first user equipment in each PRB of the one or more first PRBs Determined based on second power to be used, wherein the first power is determined by the base station based on the power setting information of the one or more first PRBs, and the second power is determined by the base station The base station according to claim 15 , wherein the base station is determined based on the power control parameter information of the one or more first PRBs. The transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is a smaller one of the first power and the second power. The base station according to claim 17 , which is power. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the maximum transmission power supported by the first user equipment. 18. The base station of claim 17 , wherein the base station is the minimum power of the first power and the second power. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is a first power, and the first power is transmitted by the base station , Determined based on the power setting information of the one or more first PRBs,
Or the transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is the maximum transmission power supported by the first user equipment. and a smaller power in the first power, the first power by the base station, wherein is determined based on one or more of said power setting information of the PRB, according to claim 15 base station. The transmission power candidate used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is a second power, and the second power is transmitted by the base station , Determined based on the power control parameter information of the one or more first PRBs
Or the transmission power candidate used to transmit the first signal from the first user equipment in each of the one or more first PRBs is the maximum transmission power supported by the first user equipment. and a smaller power in the second power, the second power, by the base station is determined based on the power control parameter information of said one or more first PRB, claim 15 Base station. The power control parameter information includes at least one of PO (j), f (j), and α (j).
j is the position number of the PRB, PO (j) is the target received power threshold set by the system to receive the discovery signal in the (j) PRB, and α (j) ∈ [0, 1] Is the path loss correction factor set by the system to transmit the signal in the (j) PRB, and f (j) is the power control parameter, and the signal from the user device is (j) PRB 22. A base station according to any one of claims 15 to 21 used to control the power increase value used to transmit at The power setting information includes the following items:
Power corresponding to each PRB of the one or more first PRBs,
Reference transmission power, and the offset value corresponding to each PRB of the one or more first PRB, and one item of said offset value corresponding to each PRB of the one or more first PRB, claim 15 The base station according to any one of 22 .   A base station,
  A first determination unit that determines power information based on a position of one or more first PRBs, wherein the first power unit is used to instruct the first user apparatus to use the power information to determine the power information based on the power information; Said first determining unit determining a transmission power used to transmit a first signal from one user equipment in said one or more first PRBs;
  A transmitting unit for transmitting the power information to the first user device;
  The power information includes power control parameter information of the one or more first PRBs,
  The power control parameter information includes at least one of PO (j), f (j), and α (j).
  j is the position number of the PRB, PO (j) is the target received power threshold set by the system to receive the discovery signal in the (j) PRB, and α (j) ∈ [0, 1] Is the path loss correction factor set by the system to transmit the signal in the (j) PRB, and f (j) is the power control parameter, and the signal from the user device is (j) PRB A base station used to control the power increment value used to transmit on the. The one or more first PRBs are one PRB,
The maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the maximum transmission power used to transmit the first signal from the first user equipment The base station according to any one of claims 15 to 24, which is a transmission power candidate used to transmit in each PRB of the first PRB. The one or more first PRBs are two or more PRBs,
The maximum transmission power used to transmit the first signal from the first user equipment in each PRB of the one or more first PRBs is the base station to transmit the first signal from the first user equipment. The base station according to any one of claims 15 to 24, determined based on at least one transmission power candidate used for transmission in the one or more first PRBs.   The maximum transmission power used to transmit the first signal from the first user device in each of the one or more first PRBs is the one or more first signals from the first user device. The base station according to claim 26, which is the smallest power of the at least one transmission power candidate used to transmit in the first PRB of.   The first signal includes an inter-device D2D discovery signal, a D2D direct communication signal, a physical uplink control channel PUCCH signal from the user equipment to the base station, and a physical uplink shared channel PUSCH signal from the user equipment to the base station The base station according to any one of claims 15 to 27, which is a signal of any one of them.

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